If a car at rest accelerates uniformly to a speed of 144 km/h in 20 s, it covers a distance of
2880 m
1440 m
400 m
20 m
A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q separated by a distance with velocity 30 km/h and 40 km/h respectively. The velocity of the car midway between P and Q is
33.3 km/h
20 √2 km/h
25 √2 km/h
0.35 km/h
A stone released with zero velocity from the top of a tower, reaches the ground in 4 s. The height of the tower is ( g = 10m/s2)
40 m
80 m
160 m
What will be ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?
4 : 5
7 : 9
16 : 25
1 : 1
Zero
A car moves a distance of 200 m. It covers the first-half of the distance at speed v. The average speed is 48 km/h. Find the value of v.
56 km/h
60 km/h
50 km/h
48 km/h
A ball P is dropped vertically and another ball Q is thrown horizontally from the same height and at the same time. If air resistance is neglected, then,
Ball P reaches the ground first
Ball Q reaches the ground first
Both the balls reach the ground at the same time
Respective masses of the two balls will decide the time
A body is thrown vertically upwards from the ground. It reaches a maximum height of 20 m in 5s. After what time it will reach the ground from its maximum height position?
2.5 s
5 s
10 s
25 s
If the water falls from a dam into a turbine wheel 19.6 m below, then the velocity of water at the turbine is ( Take g = 9.8 m/s2)
9.8 m/s
19.6 m/s
39.2 m/s
98 m/s
A body dropped from top of a tower fall through 40 m during the last two seconds of its fall. The height of tower is (g = 10m/s2)
60 m
45 m
50 m
