Two balls are dropped from heights h and 2h respectively from the earth surface. The ratio of time of these balls to reach the earth is
The acceleration due to gravity on the planet A is 9 times the acceleration due to gravity on planet B. A man jumps to a height of 2m on the surface of A. What is the height of jump by the same person on the planet B
A body falls from rest in the gravitational field of the earth. The distance travelled in the fifth second of its motion is (g=10m/s²)
If a body is thrown up with the velocity of 15 m/s then maximum height attained by the body is (g = 10 m/s2)
A balloon is rising vertically up with a velocity of 29 ms–1. A stone is dropped from it and it reaches the ground in 10 seconds. The height of the balloon when the stone was dropped from it is (g = 9.8 ms–2)
A ball is released from the top of a tower of height h meters. It takes T seconds to reach the ground. What is the position of the ball in T/3 seconds
Two balls of same size but the density of one is greater than that of the other are dropped from the same height, then which ball will reach the earth first (air resistance is negligible)
A packet is dropped from a balloon which is going upwards with the velocity 12 m/s, the velocity of the packet after 2 seconds will be
If a freely falling body travels in the last second a distance equal to the distance travelled by it in the first three second, the time of the travel is
A body is thrown vertically upwards with velocity u. The distance travelled by it in the fifth and the sixth seconds are equal. The velocity u is given by (g = 9.8 m/s2)
A body, thrown upwards with some velocity reaches the maximum height of 50 m. Another body with double the mass thrown up with double the initial velocity will reach a maximum height of
A parachutist after bailing out falls 50 m without friction. When parachute opens, it decelerates at 2 m/s2. He reaches the ground with a speed of 3 m/s. At what height, did he bail out ?
Three particles A, B and C are thrown from the top of a tower with the same speed. A is thrown up, B is thrown down and C is horizontally. They hit the ground with speeds V_A,V_B and V_C respectively.
Three particles A, B and C are thrown from the top of a tower with the same speed. A is thrown up, B is thrown down and C is horizontally. They hit the ground with speeds and respectively.
An object start sliding on a frictionless inclined plane and from same height another object start falling freely
The distance travelled by a particle starting from rest and moving with an acceleration 4/3ms¯²
, in the third second is
The position x of a particle with respect to time t along x‐axis is given by x=9t²-t³ where x is in metres and t in seconds. What will be the position of this particle when it achieves maximum speed along the +x direction?
Two bodies A (of mass 1 kg) and B (of mass 3 kg) are dropped from heights of 16 m and 25 m , respectively the ratio of the time taken by them to reach the ground is
A car runs at a constant speed on a circular track of radius 100 m , taking 62.8 seconds for every circular lap. The average velocity and average speed for each circular lap respectively is
A particle moves along a straight line OX . At a time t (in seconds) the distance x (in metres) of the particle from O is given by x=40+12t-t³ . How long would the particle travel before coming to rest?
