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)
The maximum range of a gun of horizontal terrain is 16 km. If g = 10 ms-2 , then muzzle velocity of a shell must be
160 ms-1
200√2 ms-1
400 ms-1
800 ms-1
If a car at rest accelerates uniformly to a speed of 144 km/h in 20 s, it covers a distance of
A car covers the first – half of the distance between two places at 40 km/h and other half at 60km/h. The average speed of the car is
40 km/h
48 km/h
50 km/h
60 km/h
What will be ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?
zero acceleration
m1: m2 : m3
m1 : 2m2 : 3m3
1 : 1 : 1
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)
