Recent questions tagged kinematic-equation-for-accelerated-motion

An open lift is moving upward with velocity $10 m/s$. It has an upward acceleration of $2 m/s^2$ . A ball is projected upward with velocity $20 m/s$ relative to ground. Find the time when ball meets the lift

asked Jul 3, 2013 by meena.p

1 answer

A ball takes t seconds to fall from height $h_1$ and $2t$ seconds to falls from height $h_2$.Then $h_1/h_2$ is

asked Jul 3, 2013 by meena.p

1 answer

A particle starts from rest from top of a smooth inclined plane of a given base. The time of fall is least when inclination of the plane to horizontal is

asked Jul 3, 2013 by meena.p

1 answer

A stone is dropped from top of a tower when it crosses a point 5 m below the top, another stone is let fall from a point 25 m below the top. Both stones reach the bottom of tower simultaneously. The height of tower is $(g=10 m/s^2)$

asked Jul 2, 2013 by meena.p

1 answer

Two diamonds begin a free fall from rest from same height $1.0 \; sec$ apart How long after will the two diamonds be 10 m apart ? $(g=10 m/s)$

asked Jul 2, 2013 by meena.p

1 answer

A rocket is fired vertically up from the ground with a resultant vertical acceleration of $10 m/s^2$. The fuel is finished in 1 minute. and it continuous to move up. What is the maximum height reached?

asked Jul 2, 2013 by meena.p

1 answer

An open lift is moving upward with velocity $10 m/s$. It has an upward acceleration of $2 m/s^2$ . A ball is projected upward with velocity $20 m/s$ relative to ground. What is displacement of lift and ball at a time when ball meets the lift.

asked Jul 2, 2013 by meena.p

1 answer

Velocity of a particle moving in a straight line varies with its displacement as $v=(\sqrt {4 +4s}) m/s$. Displacement of particle at time t=0 is s=0. The displacement of particle at time t=2s is

asked Jul 2, 2013 by meena.p

1 answer

Ball A is dropped from top of a building. At same instant ball B is thrown vertically upwards from ground. When the balls collide, they were moving in opposite directions and speed of A is twice the speed of B. At what fraction of the height of building did the collision occur

asked Jul 1, 2013 by meena.p

1 answer

A ball is dropped from the roof 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 three seconds.The value of h is $(g=10 m/s^2)$

asked Jul 1, 2013 by meena.p

1 answer

A particle is released from rest from a tower of height 3h, the ratio of time of fall for equal heights h ie $t_1:t_2:t_3$ is

asked Jul 1, 2013 by meena.p

1 answer

Average velocity of a particle moving in a straight line, with constant acceleration a, initial velocity u, time t is

asked Jun 27, 2013 by meena.p

1 answer

A particle is dropped from point A at a certain height from ground. It falls freely and passes through three points B,C and D with BC=CD.Time taken for particle to move from B to C is 2 seconds and from C to D is 1 second. Time taken to move from A to B is

asked Jun 26, 2013 by meena.p

1 answer

A juggler maintains four balls in motion making each of them raise to a height of 20m from his hand.What time interval should he maintain, for the proper distance between them $(g=10 m/s^2)$

asked Jun 26, 2013 by meena.p

1 answer

In a car race, car A takes less time to finish than car B and passes finishing point with a velocity $v_0$ more than velocity of car B and $t_0$ time earlier than car B. The cars starts from rest and travel with acceleration $a_1$ and $a_2$ respectively. Then ratio of $\large\frac{v_0}{t_0}$ is

asked Jun 26, 2013 by meena.p

1 answer

Two particles start moving from the same point in a straight line. The first moves with constant velocity v and second moves with constant acceleration a. During the time that elapses before the second catches the first, the greatest distance between the particle is

asked Jun 26, 2013 by meena.p

1 answer

A particle is projected vertically from a point A on ground. It takes time $t_1$ to reach point B but still continous to move up. It takes further $t_2$ time to reach the ground from point B. Height of point B from the ground is

asked Jun 26, 2013 by meena.p

1 answer

Two cars start off to race with velocities 4m/s and 2 m/s and travel in straight line with uniform acceleration $1\; m/s^2$ and $2 m/s^2$ respectively. If they reach the final point at same time, then the length of path is

asked Jun 25, 2013 by meena.p

1 answer

A particle starts from rest at $t=0$ and undergoes an acceleration 'a' in $m/s^2$ with 't' in sec as shown

asked Jun 25, 2013 by meena.p

1 answer

A freely falling body is found to cover $7/16 ^{th} $ of the height of fall during the last second of its motion.Find the height from which it falls $(g=10m/s^2)$

asked Jun 24, 2013 by meena.p

1 answer

A man holds four balls 180 m above the ground and drops them at regular intervals of time so that when the first ball hits ground, fourth ball is just leaving his hand. At this time the second and third balls from the ground are at the positions.

asked Jun 24, 2013 by meena.p

1 answer

A car travelling with a speed of 60 km/hr can brake to stop within a distance of 20m. If the car is going twice as fast, the stopping distance will be ?

asked Jun 24, 2013 by meena.p

1 answer

Two bodies begin to free fall from same height at a time interval of N seconds, If the vertical seperation between them is 1m after n seconds from the start of 1st body, then n equals

asked Jun 24, 2013 by meena.p

1 answer

A particle starts from rest from top of an inclined plane of a given base. The time of fall is least when the inclination of the plane to the horizon is

asked Jun 23, 2013 by meena.p

1 answer

A block of mass 10kg is dropped from top of a cliff 100m high at same time a bullet of mass 10g is fired vertically upward with velocity of 100m/s. after how much time will they meet ?

asked Jun 21, 2013 by meena.p

1 answer

A stone is dropped from a $25^{th}$ storey of a multistoreyed building. and it reaches the ground in $5\; sec$. How many storeys does it pass through in the 1st second ? ( g = 9.8m/s )

asked Jun 21, 2013 by meena.p

1 answer

A balloon is rising steadily at 5m/s. when it reaches a height of 30 m, a stone is dropped from it. After how much time will the stone reach the ground ?

asked Jun 21, 2013 by meena.p

1 answer

A ball is thrown upward from a bridge with an initial velocity of 4.9 m/s. It strikes water after 2s. If $g=9.8 m/s^2$ What is the height of the bridge ?

asked Jun 20, 2013 by meena.p

1 answer

A ball is thrown vertically upwards from ground and a student gazing out of window sees it moving upward past him at 5 m/s. The window is 10 m above the ground.Find the maximum height of the ball.

asked Jun 20, 2013 by meena.p

1 answer

A body is moving along a straight line with a constant acceleration and has velocities 6m/s and 8 m/s at points A and B of its path. Find the velocity at mid point of AB

asked Jun 20, 2013 by meena.p

1 answer

Ask Questions, Get Answers