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Kinematics
Page 5
Questions (15,765)
the velocity of a particle is given by v=[16t^2i+4t^3j +(5t+2)k]m/s, where t is in seconds. If the particle is at the origin
4 answers
asked by
sarah
3,847 views
A rocket is launch from the top of an 40 foot cliff with an initial velocity of 140 feet per second, the height h of the rocket
4 answers
asked by
Wes
2,009 views
A plane is flying horizontally with speed
193 m/s at a height 2010 m above the ground, when a package is dropped from the
7 answers
asked by
Anonymous
12,747 views
A helicopter is ascending vertically with a speed of 5.20 m/s. AT the height of 125m above the earth, a package is dropped from
6 answers
asked by
Bunty
24,260 views
If a ball is thrown into the air with a velocity of 48 ft/s, its height in feet t seconds later is given by y = 48t − 16t2.
(a)
6 answers
asked by
Dann
14,495 views
A motorist traveling with a constant speed of 15m/s passes a school-crossing corner, where the speed limit is 10m/s. Just as the
7 answers
asked by
:)
13,468 views
A woman on a bridge 75.0m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an
4 answers
asked by
Bob
9,867 views
A bike first accelerates from 0.0 m/s to 5.0 m/s in 4.5 s, then continues at this constant speed for another 4.5 s. What is the
10 answers
asked by
lindsey
16,533 views
A ball mass 1000g is drop from a height Of 5m and rebounded to a height Of 25 m. Find i it kintentic just before impact ii its
9 answers
asked by
Anonymous
3,337 views
The velocity function (in meters per second) is given for a particle moving along a line.
v(t) = 3t − 7, 0 ≤ t ≤ 3 (a) Find
4 answers
asked by
Anonymous
13,127 views
A grasshopper leaps into the air from the edge of a cliff at a 50 degree angle. He reaches a maximum height 6.74 cm above the
7 answers
asked by
Sarah
19,849 views
A stone is thrown vertically upward with a speed of 18.0 m/s.
(a)How fast is it moving when it reaches a height of 11.0 m? (b)How
4 answers
asked by
Anonymous
6,994 views
Two planes are about to drop an empty fuel tank. At the moment of release each plane has the same speed of 135 m/s, and each
4 answers
asked by
Anonymous
15,346 views
A car travels 20.2 km due north and then
31.3 km in a direction φ = 61.2◦ west of north. Find the magnitude of the car’s
4 answers
asked by
Aurora
4,627 views
A body which is uniformly retarded comes to rest in 10 s after travelling a distance of 20m.calculate its initial velocity
14 answers
asked by
Samuel Oti
2,654 views
A baseball player leads off the game and hits a long home run. The ball leaves the bat
at an angle of 30.0o from the horizontal
6 answers
asked by
Charles
11,908 views
Amechanic pushes a 2.50*10^3 kg car from rest to a speed of v, doing 5.00*10^3 Jof work in the process, During this time, the
4 answers
asked by
Anynomous
4,646 views
A particle starts at the point (5,0) at t=0 and moves along the x-axis in such a way that at time t>0 its velocity v(t) is given
5 answers
asked by
Rasheda
5,447 views
A ball was thrown with a velocity of 150 ft/ s at angle of 45 degrees above the horizontal.
a)Find the range and the time of
5 answers
asked by
lee
1,342 views
A car moving at 15 m/s skids to a stop after 20 m. How far will it skid if it is moving at 45 m/s, assuming that the braking
4 answers
asked by
unowen
4,084 views
a meteor falls from the sky into the earth. the meteor already had an initial velocity downward when it was spotted. if it hit
5 answers
asked by
Jeremy Bearimy
2,554 views
A spaceship in deep space has a velocity of 4000 km/s and an acceleration in the forward direction of 6 m/s2. What is the
5 answers
asked by
Kay
979 views
A child traveling 5m/s on a sled passes her younger brother.if her average acceleration on the sledding hill is 2m/s,how fast is
4 answers
asked by
rally
2,290 views
A 65 kg sprinter completes a 100 m race in 9.83 s. Calculate the average kinetic energy of the sprinter.
4 answers
asked by
Onyeka
1,669 views
A rock is thrown upward with a velocity of 15 meters per second from the top of a 49 meter high cliff, and it misses the cliff
5 answers
asked by
pam
2,555 views
A shotputter accelerates a 7.3kg shot from rest to 14m/s. If this motion takes 2.0s what average power was developed?
5 answers
asked by
maria
7,170 views
a car is traveling at 40.0 m/s. the drivers sees an emergeny ahead and 0.50 s later slams on the brakes. the acceleration of the
5 answers
asked by
jel
1,679 views
A cage descends a mine shaft with an acceleration of 0.5 m/s2. After the cage has travelled 25 metres,
a stone is dropped from
4 answers
asked by
joel
4,081 views
An block of mass m , starting from rest, slides down an inclined plane of length L and angle θ with respect to the horizontal.
5 answers
asked by
Anonymous
1,980 views
make m the subject of mg-t=ma
7 answers
asked by
Anonymous
1,592 views
The path of a particle moving in a straight line is given by s=t^3-6t^2+9t+4.
a. Find s and a when v=0. b. Find s and v when a=0.
5 answers
asked by
eyyy
2,709 views
A stone of mass 20g is release from a catapult whose rubber has been stretched through 4cm, if the force constant of the rubber
12 answers
asked by
Justice
5,581 views
a package is released from a helicopter flying horizontally at a constant soeed of 40m/s. the oackage takes 3.0s to reacg the
5 answers
asked by
anonymous
2,983 views
An arrow is shot vertically upward from a platform 48 ft high at a rate of 233 ft per sec. When will the arrow hit the ground?
5 answers
asked by
diane
2,190 views
Maria throws a ball straight up with an initial velocity of 10 m/s.
What is its velocity at the highest point? What is its
7 answers
asked by
Joyce
14,263 views
A small sandbag is dropped from rest from a hovering hot air balloon. After 2.0 s, how far below the balloon is the sand bag?
5 answers
asked by
Zenon02
4,061 views
A ball of mass 0.075 kg is fired horizontally into a ballistic pendulum. The pendulum mass is 0.350 kg. The ball is caught in
4 answers
asked by
sara
3,990 views
You are traveling in your car at a velocity of 24.0m/s east when you slam on your brakes. The
force of friction on your car tires
4 answers
asked by
wow
702 views
Camille launches a model rocket in an open field near her house. The rocket has a bit of a problem, being slightly off balance.
9 answers
asked by
questioner
1,498 views
A body accelerate uniformly from rest at 2ms-2 .calculate it,s velocity after travelling 9m
7 answers
asked by
DAVID
3,013 views
A vehicle is travelling at 25.0 m/s. It brakes provide an acceleration of -3.75 m/s^2[forward]. What is the driver's maximum
5 answers
asked by
Dee
1,683 views
A particle moving in a straight line with uniform deceleration has a velocity of 40m/s at a point, P, 20m/s at a point, Q and
4 answers
asked by
Anonymous
2,066 views
How far does a car going 25 m/s travel in 5s ? How far would a jet going 250 m/s travel in 5s?
4 answers
asked by
mandy Schwarzenegger
3,012 views
A 17 g bullet strikes and becomes embedded in a 1.20 kg block of wood placed on a horizontal surface just in front of the gun.
4 answers
asked by
Jordan
2,384 views
The position of a particle moving along the x axis is given by x = (21 + 22t − 6t^2)m, where t is in s. What is the average
4 answers
asked by
TNT
4,496 views
an object falls directly from a plane flying horizontally at an altitude of 10000ft at 50mi/h. how long will it take to hit the
4 answers
asked by
ayon
1,561 views
The position of a particle moving on a horizontal line is given by s(t)=2t^3-15t^2+24t-5, where s is measured in feet and t in
4 answers
asked by
Raul
3,325 views
A man travels 7.0km due north , then 10.0km east. Find the resultant displacement.
If he travels 7.0km 30degrees East of
4 answers
asked by
Ojumoola
833 views
The height, in meters, of a projectile can be modeled by h= -4.9t^2 + vt + s where t is the time (in seconds) the object has
4 answers
asked by
Cooper
4,968 views
A car moving 30m/s slows uniformly to a speed of 10 m/s in a time of 5 sec determine
1) the acceleration of the car 2) the
4 answers
asked by
Equality
4,089 views
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