Chapter 3 – Motion in One Dimension

A bullet fired into a target loses half of its velocity after penetrating 20 cm. Further distance of penetrate before it comes to rest? A bullet fired into a target loses half of its velocity after penetrating 20 cm. Further distance of penetrate before it comes to rest? September 10, 2020 Category: Chapter 3 - [...]

A particle starting with certain initial velocity and uniform acceleration covers a distance of 12 m in first 3 s and a distance of 30 m in next 3 s. The initial velocity of the particle is A particle starting with certain initial velocity and uniform acceleration covers a distance of 12 m in first [...]

A ball is dropped from the top of a tower with a height of 100m and at the same time, another ball is projected vertically upwards from the ground with a velocity of 25m/s. What is the distance from the top of the tower at which the two balls meet? A ball is dropped from [...]

The bus moving with a speed 42km/h is brought to a stop by brakes after 6m. If the same bus is moving at a speed of 90km/h, then the minimum stopping distance is. The bus moving with a speed 42km/h is brought to a stop by brakes after 6m. If the same bus is moving [...]

The time required to stop a car of mass 800 kg moving at a speed of 20 ms^−1 over a distance of 25 m is The time required to stop a car of mass 800 kg moving at a speed of 20 ms^−1 over a distance of 25 m is September 10, 2020 Category: Chapter [...]

A ball dropped from a point A falls down vertically to C, through the mid-point B. The descending time from A to B and that from A to C are in the ratio A ball dropped from a point A falls down vertically to C through the mid-point B. The descending time from A to [...]

From a balloon moving upwards with a velocity of 12 ms^−1, a packet is released when it is at a height of 65 m from the ground. The time taken by it to reach the ground is (take, g=10 ms^−2) a packet is released when it is at a height of 65 m from the [...]

A body is travelling east with a speed of 9 m/s with an acceleration of 2 m/s^2 acting west on it. the displacement of the body during the 5th sec of its motion is A body is travelling east with a speed of 9 m/s with an acceleration of 2 m/s^2 acting west on it. [...]

A bullet fired from a rifle loses 20% of its speed while passing through a wooden plank then minimum number of wooden planks repaired to completely stop the bullet is A bullet fired from a rifle loses 20% of its speed while passing through a wooden plank then minimum number of wooden planks repaired to [...]

If displacement x of a particle moving in straight line is given by x = {t}^{3} – 12t where t is time in sec and x in metre . find the acceleration of the particle, when velocity of the particle is 0 If displacement x of a particle moving in straight line is given by [...]