An apple fruit is dropped to the ground from the top a tree 45m tall.
How long does it take to reach the ground?
(Take g = 10m/s²)
A mango fruit drops from a branch 10m above the ground.
Just before hitting the ground, its velocity is
A motor vehicle is brought to rest from a speed of 15m/s in 20s.
Calculate the retardation
A car traveling at 20m/s is brought to rest with a constant deceleration of 10m/s².
Calculate the distance traveled.
A car moving with a speed of 90km/hr was brought uniformly to rest by the application of the brakes in 10s.
How far did the car travel after the brakes were applied?
Which of the following types of motion are oscillatory?
I. a diving board when used by a diver
II. the motion of the balance wheel of a wrist watch
III. the motion of turn-table of a record player
IV. the motion of the center of a coin as it rolls down on an inclined plane
V. the motion of a needle of a d.c ammeter into which a low a.c current is passed.
A train with an initial velocity of 20m/s is subjected to a uniform deceleration of 2m/s². The time required to bring the train to a complete halt is
A car starts from rest and moves with a uniform acceleration of 30m/s² for 20s.
Calculate the distance covered at the end of the motion
A bullet fired vertically upward from a gun held 2m above the ground reaches its maximum height in 4s.
Calculate its initial velocity. (g = 10m/s²)
Two particles A and B starting from rest cover the same distance.
The acceleration of A is twice that of B, the ratio of the time taken by A to that taken by B is
What is the acceleration between two points on a v-t graph which has coordinates
(10s, 15m/s) and (20s, 35m/s)
A body starts from rest and moves in a straight path with uniform acceleration of 8m/s² for 5 seconds. It then decelerates uniformly to rest in the next 10 seconds. Calculate the magnitude of its acceleration.
A body falls freely under gravity (g = 9.8m/s²) from a height of 40m onto the top of a platform 0.8m above the ground.
Its velocity on reaching the platform is
From the top of the Eiffel tower, a rubber ball and a piece of iron rod were dropped to the ground.
Which of the following is true? (neglect air resistance)
A body travels from rest and accelerates uniformly to a speed of 120km/hr in 10 seconds. What is the distance covered?
The distance moved by a particle in the sixth and eight seconds of the motion are 45m and 53m respectively.
Determine the acceleration and initial speed.
The motion of a moving skin of a talking drum can rightly be described as
A stone was dropped from a height, h and attained a velocity of 20m/s just before hitting the ground. If g = 10m/s², calculate the height, h through which it fell..
The distance traveled by a particle starting from rest is plotted against the square of the time elapsed from the commencement of motion.
The resultant graph is linear.
The slope/gradient of this graph is a measure of
If a body moves with a constant speed and at the same time undergoes an acceleration, its motion is said to be
The driver in a car of which the total mass is 800kg and which is traveling at 20m/s, suddenly observes a stationary cat in his path 50m ahead.
If the car brakes exert a force of 2KN, what will most likely happen?
Which of the following statements is true of a body which is moving in a straight line with uniform acceleration? The velocity of the body
An object moves with uniform speed round a circle. Its acceleration has
A body starts from rest and moves with uniform acceleration of 6m/s².
What distance does it cover in the third second ?
A body which is uniformly retarded comes to rest in 10s after traveling a distance of 20m.
Calculate its initial velocity.