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Kinematics
Page 8
Questions (15,708)
14. A racing car accelerates uniformly through three gears, changes with the following average speed:
20 for 2.0 s 40 for 2.0 s
6 answers
asked by
Mariam
2,557 views
A body of mass 2kg falls freely from rest through a height of 50m and comes to rest having penetrated 5.0cm of sand.
Calculate.
5 answers
asked by
Anonymous
2,702 views
A driver takes off with a speed of 10m/s from a 5m high diing board at 30° above the horizontal how much later doesh she strike
4 answers
asked by
Shaun
1,115 views
A ball is thrown upward with speed 12m/s from the top of a building. How much later must a second ball be dropped. From the same
4 answers
asked by
Majiri
1,732 views
Approaching a flashing pedestrian activated traffic light, a driver must slow down to a speed of 30km/h. If the cross walk is
4 answers
asked by
jason
2,307 views
a body is projected horizontally with a velocity of 80m/s from the top of a tower 160m above the ground. find the time of
5 answers
asked by
Projectile
1,207 views
a ball moves up a hill with an initial velocity of 3m/s. four seconds later, it is moving down the hill at 9.0m/s. find the
4 answers
asked by
osama
736 views
A 2.00 METER TALL BASKETBALL PLAYER ATTEMPTS A GOAL 10.00 METERS FROM THE BASKET(3.05 METERS HIGH). IF HE SHOOTS THE BALL AT A
4 answers
asked by
Jill Hefner
4,034 views
An object is thrown directly downwards from a height of 60m with an initial velocity of 11m/s. What will be its velocity on
4 answers
asked by
Ethan
924 views
In 5 seconds a car accelerate from 0 to 40 m/s. 20 sec after reaching 40m/s the car comes to a complete stop. if this
5 answers
asked by
Anonymous
1,155 views
A ball is thrown directly upward at 19.6 m/s how much time passes before the ball reaches the top of its motion
4 answers
asked by
a.a
795 views
A ball is dropped from a height of 12 feet and returns to a height that is half the height from which it fell. the ball
3 answers
asked by
brad
3,685 views
A 5.0 kg model vehicle travelling at 14 m/s experiences a rocket boost of 85 N ( in the direction of motion) for 20 s
What is the
4 answers
asked by
Danny
1,938 views
Two particles Q and P are shot up vertically.P was first shot with velocity of40m/s and after4s.Q was also shot up.If upon
5 answers
asked by
Boateng Emmanuel
2,274 views
A fighter jet lands on the flight deck of an aircraft carrier that has a length of 300.0 m. The jet must reduce its speed from
4 answers
asked by
Yalitza
1,277 views
A driver of a car travelling along a straight road with a speed of 72k.m./hour . Observes a sign board which gives the speed
4 answers
asked by
pari
1,569 views
A particle moves along the x-axis so that its position as a function of time is given by the equation, find the velocity (as a
2 answers
asked by
karen
688 views
A ball of mass 0.1kg dropped from a building of 8m high unto a hard floor bounces back to a height of 2m. Calculate the change
4 answers
asked by
Lauryn
1,234 views
A poorly tuned Prius can accelerate from rest to a speed of 28 m/s in 20s.
a) what is the average acceleration of the car? my
4 answers
asked by
Alexander
1,226 views
A helicopter is ascending vertically with a speed of 5.00 m/s. At a height of 120 m above the Earth, a package is dropped from a
4 answers
asked by
Cara
2,563 views
A car is running at a speed of 80m/s. It is then decelerated at the rate of 10m/s2. When will it stop?
3 answers
asked by
Mae
257 views
a bullet of mass 120g is fired horizontally into a fixed wooden block with a speed of 20 m/s. If the bullet is brought to rest
6 answers
asked by
POPPY
2,498 views
A roller coaster of mass 1000.0 kg passes point A with a speed of 1.80 m/s?
point a= 30m point b= 0m point c= 25m point d= 12m 1.
4 answers
asked by
aly
3,171 views
The height of a ball thrown upward on the moon with a velocity of 8 meters per second can be modeled by h=-0.8t^2+8t, where h is
3 answers
asked by
Potatoes
1,882 views
A lift of mass 200kg moves upward with a uniform velocity of 4 m/s . if efficiency of motor is 70% then input power of motor is?
4 answers
asked by
rpzubaern
2,472 views
A ball is thrown straight up from the top of a building 148 ft. tall with an initial velocity of 72 ft per second. The distance
s
3 answers
asked by
Reagan
1,473 views
A ball of mass 522 g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally,
4 answers
asked by
Angela
6,790 views
How much work must be done to accelerate an 8x105 kg train: a) from 10 m/s to 15 m/s; b) from 15 m/s to 20 m/s; c) to a stop an
3 answers
asked by
Lesley
478 views
A cyclist and her bicycle have a combined mass of 75 kg. She comes to a complete stop at the crest of 15 m high hill, then coast
3 answers
asked by
Afia
929 views
In attempting to pass the puck to a teammate, a hockey player gives it an initial speed of 1.43 m/s. However, this speed is
4 answers
asked by
KS
1,787 views
A projectile is shot vertically into the air. Its height, h, in metres, after t seconds is approximately modelled by the
3 answers
asked by
Alex
1,458 views
a circular track is made on which an athlete has to cover three rounds to complete a 1000m run.during the run find the distance
4 answers
asked by
aashi
1,226 views
A car of mass 1200kg travelling @ 72 km/h is brought to rest in 4s.Find a) the average deceleration b)the average braking force
7 answers
asked by
Luc
2,976 views
A car that starts from rest and has uniform acceleration. The car must travel 60 meters before reaching a speed of 10 m/s. What
3 answers
asked by
N
353 views
a ball is dropped from the top of the tower 80 ft.high at the same instant that a second ball is thrown upward from the ground
2 answers
asked by
jomari
1,008 views
A truck travels at a speed of 64 km / h heading towards Town A. 3 hours later a jeep travelling at a speed of 96 km / h begins
3 answers
asked by
dppsps
520 views
An object fired horizontally with a velocity of 30m/s from a top of a taal tower 250m high.The object lands on top of a building
4 answers
asked by
KESSE
890 views
Hoping Henry can help on previous prob.
A ball is thrown upwards from a roof top, 80ft above the ground. It will reach a maximum
4 answers
asked by
Mike
830 views
tammy leaves the office drives 50 km due north, then turns onto a second highway and continues in a direction of 32 degrees
3 answers
asked by
Krystal
880 views
An airplane lands and starts down the runway at a southwest velocity of 43 m/s. What constant acceleration allows it to come to
4 answers
asked by
Candy
1,856 views
A 17mlong vine hangs vertically from a tree on one side of a 10 m wide gorge, as shown in the figure. Tarzan runs up, hoping to
3 answers
asked by
James
2,401 views
Two objects are launched with the same initial horizontal velocity, but one has twice the initial vertical velocity as the
2 answers
asked by
ko
699 views
A particle starts from rest and moves with a constant acceleration of 0.5m/s2. Calculate the time taken by the particle to cover
3 answers
asked by
Joy
1,218 views
a body projected with velocity 30m/s an angle 30¡ã with horizontal maximum height attained by he object is.........?
4 answers
asked by
yogesh
1,567 views
A student throws a baseball vertically upward, and 2.8s later catches it at the same level. Neglecting air resistance ,
3 answers
asked by
Melissa
1,268 views
Standing on a balcony, you throw your keys to a friend standing on the ground below. 1.1 seconds after you release the keys,
7 answers
asked by
austin
2,493 views
If a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.5 m/s2 , how long does it
4 answers
asked by
dale
1,301 views
A ball is kicked at an angle of 50 with a velocity of 14m/s.
a. how long is it in the air? b. how high does it rise? can someone
4 answers
asked by
Lauren
951 views
A toy rocket is launched form a 3m platform, at 8.2m/s. The height of the rocket is modelled by the equation h=-4.0t^2+8.1t+3
4 answers
asked by
Rachel
3,015 views
A plane flies due north at 300km/h but a crosswind blows north-west at 40km/h. Find the resultant velocity of the plane.
Once I
2 answers
asked by
Chloe
634 views
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