A particle is dropped vertically from rest, from a height.The time taken by it to fall through successive distances of 1m each will be, then
Options
(a) all equal, being equal to √2/g […]
A bus is moving with a speed of 10 ms⁻¹ on a straight road. A scooterist wishes to overtake the bus in 100 s. If the bus is at a distance of 1 km from […]
A particle moves in a straight line with a constant acceleration. It changes its velocity from 10 ms⁻¹ to 20 ms⁻¹ while passing through a distance 135m in t second. The value of t is: […]
A man of 50 kg mass is standing in a gravity free space at a height of 10 m above the floor. He throws a stoneof 0.5 kg mass downwards with a speed 2 m/s. […]
A body is moving with velocity 30 m/s towards east. After 10 seconds its velocity becomes 40 m/s towards north. The average acceleration of the body is
Options
(a) 1m/s² (b) 7 m/s² […]
A ball is dropped from the root of a tower of height h.The total distance covered by it in the last second of its motion is equal to the distance covered by it in first […]
A boy standing at the top of a tower of 20m height drops a stone. Assuming g = 10 ms⁻², the velocity with which it hits the ground is
Options
(a) 10 m/s […]
An objective moves ,starting from rest through a resistive medium such that it’s acceleration is related to velocity as, a=3-2v.Then,
Options
(a) the terminal velocity is 1.5 unit (b) the terminal velocity is […]
A train is moving along a straight path with uniform acceleration.It’s engine passes across a pole with a velocity of 60 kmh⁻¹ and the end (guard’s van) passes across same pole with a velocity of […]
In one dimensionsal motion,instantaneous speed v statisfies 0⦤v⦤vₒ
Options
(a) The displacement x in time T must always take non-negative values (b) The displacement x in time T satisfies -vₒT
2017 Copyright Doctor Dreams Training Academy