A ball which is at rest is dropped from a height h metre. As it bounces off the floor its speed is 80% of what is just before touching the ground. The ball will then rise to nearly a height
0.94 h
0.80 h
0.75 h
0.64 h
For an object moving upwards, the value of final velocity will be
9.8
0
1/2
1/4
For a freely falling body
v=0
h=0
u=0
g=0
What is the final velocity of a body, which is fell down from a height of 5m?
40m/s
30m/s
20m/s
10m/s
A stone is dropped into a dry well and it seemed to hit the bottom of the well 3s after being dropped. What is the depth of the well.
32.6m
35.9m
34.3m
36.8m
A car accelerates uniformly from rest to a speed of 5 m/s over a distance of 30 m. Determine the acceleration of the car.
0.365m/s2
0.416m/s2
0.26m/s2
0.23m/s2
For a freely falling body with an initial velocity, u = 0, the velocity gradually become
decreased
increased
doubled
halved
A stone released with zero velocity from the top of tower reaches the ground in 4s. The height of the tower is about
20m
40m
80m
160m
A ball is dropped from the top of a building, having a height of 45m. What will be the time of descent of the ball?
3s
4s
5s
6s
A ball is thrown upwards and reached a maximum height of 20m. What is its initial velocity?
14m/s
7m/s
