Chapter 3 – Motion in One Dimension
Two object P and Q, traveling in the same direction starts from rest. While the object P starts at time t=0 and object Q starts later at t=30min. The object P has an acceleration of 40km h^−2. To catch P at a distance of 20km, the acceleration of Q should be.
10
Sep
Two object P and Q, traveling in the same direction starts from rest. While the object P starts at time t=0 and object Q starts later at t=30min. The object P has an acceleration of 40km h^−2. To catch P at a distance of 20km, the acceleration of Q should be. a stone is thrown [...]
A body A thrown vertical upwards with a velocity v reaches a height of 200 m. Another body B whose mass is twice that of A is thrown with a velocity 2 v. Find the maximum height reached the B.
10
Sep
A body A thrown vertical upwards with a velocity v reaches a height of 200 m. Another body B whose mass is twice that of A is thrown with a velocity 2 v. Find the maximum height reached the B. A body A thrown vertical upwards with a velocity v reaches a height of 200 [...]
a stone is thrown straight up and reaches a height h before falling back to the ground T seconds later. What is the average velocity and average speed
10
Sep
a stone is thrown straight up and reaches a height h before falling back to the ground T seconds later. What is the average velocity and average speed a stone is thrown straight up and reaches a height h before falling back to the ground T seconds later. What is the average velocity and average [...]
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
10
Sep
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 [...]
Two cars A and B are moving with same speed of 45km/hr along same direction. If a third car C coming from opposite direction with a speed of 36km hr meets two cars in an interval of 5 minutes, the distance of separation of two cars A and B should be (in km)
10
Sep
Two cars A and B are moving with same speed of 45km/hr along same direction. If a third car C coming from opposite direction with a speed of 36km hr meets two cars in an interval of 5 minutes, the distance of separation of two cars A and B should be (in km) the distance [...]
A ball A is thrown vertically upwards with speed u. At the same instant another ball B is released from rest at height h. At time t, the speed of A relative to B is
10
Sep
A ball A is thrown vertically upwards with speed u. At the same instant another ball B is released from rest at height h. At time t, the speed of A relative to B is A ball A is thrown vertically upwards with speed u. At the same instant another ball B is released from [...]
Two trains A and B of length 400 m each are moving on two parallel tracks with a uniform speed of 72 km h−1 in the same direction, with A ahead of B. The driver of B decides to overtake A and accelerates by 1 m s−2. If after 50 s, the guard of B just brushes past the driver of A, what was the original distance between them?
10
Sep
Two trains A and B of length 400 m each are moving on two parallel tracks with a uniform speed of 72 km h−1 in the same direction, with A ahead of B. The driver of B decides to overtake A and accelerates by 1 m s−2. If after 50 s, the guard of B [...]
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the guard of B just brushes past the driver of A ,
Two trains A and B of length 400 m each are moving on two parallel tracks with a uniform speed of 72 km h−1 in the same direction ,
what was the original distance between them? ,
with A ahead of B. The driver of B decides to overtake A and accelerates by 1 m s−2. If after 50 s ,
A police car moving on a highway with a speed of 30 km h−1 fires a bullet at a thief’s car speeding away in the same direction with a speed of 150 km h−1. If the muzzle speed of the bullet is 150 m s−1, with what speed does the bullet hit the thief’s car?
10
Sep
A police car moving on a highway with a speed of 30 km h−1 fires a bullet at a thief’s car speeding away in the same direction with a speed of 150 km h−1. If the muzzle speed of the bullet is 150 m s−1, with what speed does the bullet hit the thief’s car? [...]
A 175 m long train is travelling along a straight track with a velocity 72 km−1 h. A bird is flying parallel to the train in the opposite direction with a velocity 18 km−1 h. The time taken by the bird to cross the train is :
10
Sep
A 175 m long train is travelling along a straight track with a velocity 72 km−1 h. A bird is flying parallel to the train in the opposite direction with a velocity 18 km−1 h. The time taken by the bird to cross the train is : A person walks up a stationary escalator in [...]
A bus is moving with a speed of 10 m s−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 the scooterist with what speed should the scooterist chase the bus?
10
Sep
A bus is moving with a speed of 10 m s−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 the scooterist with what speed should the scooterist chase the bus? A person walks up a stationary escalator in [...]