Chapter 3 – Motion in One Dimension
Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 3 - Motion in One Dimension
A stone is dropped from the 25th storey of a multistoried building and it reaches the ground in 5 s. In the first second, it passes through how many storeys of the building? (g = 10 ms^−2)
05
Sep
A stone is dropped from the 25th storey of a multistoried building and it reaches the ground in 5 s. In the first second, it passes through how many storeys of the building? (g = 10 ms^−2) A stone is dropped from the 25th storey of a multistoried building and it reaches the ground in [...]
A ball is thrown from the top of a tower in vertically upward direction. The velocity at a point h meter below the point of projection is twice of the velocity at a point h meter above the point of projection. Find the maximum height reached by the ball above the top of tower.
05
Sep
A ball is thrown from the top of a tower in vertically upward direction. The velocity at a point h meter below the point of projection is twice of the velocity at a point h meter above the point of projection. Find the maximum height reached by the ball above the top of tower. A [...]
A juggler keeps on moving four balls in air throwing the balls after regular intervals. When one ball leaves his hand (speed = 20 ms^−1), the position of other balls (height in metre) will be : (Take g = 10 ms^−2)
05
Sep
A juggler keeps on moving four balls in air throwing the balls after regular intervals. When one ball leaves his hand (speed = 20 ms^−1), the position of other balls (height in metre) will be : (Take g = 10 ms^−2) A juggler keeps on moving four balls in air throwing the balls after regular [...]
A body starts from rest and travels a distance S with uniform acceleration, then moves uniformly a distance 2S uniformly, and finally comes to rest after moving further 5S under uniform retardation. The ratio of the average velocity to maximum velocity is:
05
Sep
A body starts from rest and travels a distance S with uniform acceleration, then moves uniformly a distance 2S uniformly, and finally comes to rest after moving further 5S under uniform retardation. The ratio of the average velocity to maximum velocity is: A body starts from rest and travels a distance S with uniform acceleration [...]
A body travels 200 cm in the first two seconds and 220 cm in the next 4 s with deceleration. The velocity of the body at the end of the 7 s is
05
Sep
A body travels 200 cm in the first two seconds and 220 cm in the next 4 s with deceleration. The velocity of the body at the end of the 7 s is A body travels 200 cm in the first two seconds and 220 cm in the next 4 s with deceleration. The velocity [...]
A stone is dropped from a certain height which can reach the ground in 5 s. It is stopped after 3 s of its fall and then it is again released. The total time taken by the stone to reach the ground will be.
05
Sep
A stone is dropped from a certain height which can reach the ground in 5 s. It is stopped after 3 s of its fall and then it is again released. The total time taken by the stone to reach the ground will be. A body is released from the top of a tower of [...]
The displacement x of a particle moving in one dimension under the action of a constant force is related to time t by the equation t = root x + 3, where x is in meter and t is in second. Find the displacement of the particle when its velocity is zero.
05
Sep
The displacement x of a particle moving in one dimension under the action of a constant force is related to time t by the equation t = root x + 3, where x is in meter and t is in second. Find the displacement of the particle when its velocity is zero. The displacement x [...]
A body dropped from the top of a tower covers a distance 7x in the last second of its journey, where x is the distance covered in first second. How much time does it takes to reach the ground?
05
Sep
A body dropped from the top of a tower covers a distance 7x in the last second of its journey, where x is the distance covered in first second. How much time does it takes to reach the ground? A body dropped from the top of a tower covers a distance 7x in the last [...]
A train 100 m long travelling at 40 m/s starts overtaking another train 200 m long travelling at 30 m/s. The time taken by the first train to pass the second train completely is:
05
Sep
A train 100 m long travelling at 40 m/s starts overtaking another train 200 m long travelling at 30 m/s. The time taken by the first train to pass the second train completely is: A train 100 m long travelling at 40 m/s starts overtaking another train 200 m long travelling at 30 m/s. The [...]
A stone is dropped from the top of a tower of height h. After 1 s another stone is dropped from the balcony 20 m below the top. Both reach the bottom simultaneously. What is the value of h? Take g = 10 ms^−2
05
Sep
A stone is dropped from the top of a tower of height h. After 1 s another stone is dropped from the balcony 20 m below the top. Both reach the bottom simultaneously. What is the value of h? Take g = 10 ms^−2 A body is released from the top of a tower of [...]