EASY
NEET
IMPORTANT
Earn 100

A particle after starting from rest, experiences constant acceleration for 20 sec. If it covers a distance s1 in first 10 sec, then the distance covered during next 10 sec will be,

50% studentsanswered this correctly

Important Questions on Kinematics

EASY
NEET
IMPORTANT
The velocity of a bullet is reduced from 100 m s-1 to 0 m s-1 while travelling through a wooden block of thickness 10 cm. The retardation, assuming it to be uniform, will be
EASY
NEET
IMPORTANT
A body falls from a height h=200 m. The ratio of distance travelled in each 2 s, during t=0 to t=6  of the journey is
EASY
NEET
IMPORTANT
Speeds of two identical cars are u are 4u at a specific instant. The ratio of the respective distances in which the two cars are stopped in the same time
MEDIUM
NEET
IMPORTANT
A particle is thrown vertically upward from ground. It experiences a constant air resistance which can produce a uniform retardation of 2 m s-2 opposite to direction of velocity of particle. The ratio of time of ascent to time of descent is g=10 m s-2 :-
HARD
NEET
IMPORTANT
A block is moving down a smooth inclined plane starting from rest at time t=0. Let Sn be the distance travelled by the block in the interval t=n-1 to t=n. The ratio SnSn+1 is 
EASY
NEET
IMPORTANT
An alpha particle enters a hollow tube of 4 m length with an initial speed of 1 km s-1. It is accelerated in the tube and comes out of it with a speed of 9 km s-1. The time for which it remains inside the tube is
EASY
NEET
IMPORTANT
A student is standing at a distance of 50 m from the bus. As soon as the bus begins its motion with an acceleration of 1 m s-2, the students starts running towards the bus with a uniform velocity u. Assuming the motion to be along a straight road, the minimum value of u, so that the student is able to catch the bus is
MEDIUM
NEET
IMPORTANT
A man throws balls with the same speed vertically upwards one after the other at an interval of 2 s. What should be the speed of throw so that more than two balls are in the sky at any time? (Given g=9·8 m s-2 )