Part 1
Particle A moves along X-axis with a uniform velocity of magnitude 10 m/s. Particle B moves with uniform velocity 20m/s along a direction making an angle of 60o with the positive direction of X-axis as shown in the figure. The relative velocity of B with respect to that of A is.
10
Sep
Particle A moves along X-axis with a uniform velocity of magnitude 10 m/s. Particle B moves with uniform velocity 20m/s along a direction making an angle of 60o with the positive direction of X-axis as shown in the figure. The relative velocity of B with respect to that of A is. A ball is dropped [...]
A ball is dropped from the top of 80 m high tower. If after 2 s of fall the gravity (g = 10 m/s^2 ) disappears, then time taken to reach ground since the gravity disappeared is
10
Sep
A ball is dropped from the top of 80 m high tower. If after 2 s of fall the gravity (g = 10 m/s^2 ) disappears, then time taken to reach ground since the gravity disappeared is A ball is dropped from the top of 80 m high tower. If after 2 s of fall [...]
A ball released at rest from the top of a tower reaches the ground in 4 secs. The height of the ball from the ground at t=2s of its journey is
10
Sep
A ball released at rest from the top of a tower reaches the ground in 4 secs. The height of the ball from the ground at t=2s of its journey is A ball released at rest from the top of a tower reaches the ground in 4secs. The height of the ball from the ground [...]
A body covers first 1/3 part of its journey with a velocity of 2m/s, next 1/3 part with a velocity of 3m/sand rest of the journey with a velocity 6m/s. The average velocity of the body will be
10
Sep
A body covers first 1/3 part of its journey with a velocity of 2m/s, next 1/3 part with a velocity of 3m/sand rest of the journey with a velocity 6m/s. The average velocity of the body will be A body covers first 1/3 part of its journey with a velocity of 2m/s next 1/3 part [...]
A car moving with a velocity of 20ms^−1 is stopped in a distance of 40m. If the same car is travelling at double the velocity, the distance travelled by it for same retardation is
10
Sep
A car moving with a velocity of 20ms^−1 is stopped in a distance of 40m. If the same car is travelling at double the velocity, the distance travelled by it for same retardation is A car moving with a velocity of 20ms^−1 is stopped in a distance of 40m. If the same car is travelling [...]
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 [...]