Kinematics

An aeroplane is flying horizontally with a velocity of 600 km/h at a height of 1960 m. When it is vertically at a point A on the ground, a bomb is released from it. The bomb strikes the ground at point B. The distance AB is :-

1200m

0.33km

3.33km

33km

The range of a projectile which is the launched at an angle of 15° with the horizontal is 1.5 km. What is the range of the projectile if it is projected of an angle 45° to the horizontal ?

1.5km

3km

6km

0.75km

A body starts from rest from the origin with an acceleration of 6 m/s2 along the x-axis and 8 m/s2 along the y-axis. Its distance from the origin after 4 seconds will be :-

56m

64m

80m

128m

A particle moves in a straight line with a constant acceleration. It changes its velocity from 10 m/s to 20 m/s while passing through a distance of 135 m in t seconds. The value of t is :-

1.8

A boat takes 2 hours to go 8 km and come back in still water lake. The time taken for going 8 km upstream and coming back with water velocity of 4km/h is :

140min

150min

160min

170min

Kinematics

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