Ball connection for hitting big sixes| Coach Dhruv| Batting tips

A cricket ball is seen to hit the bat first and the sound of hitting is heared a little later. Why?

6A cricket ball of mass 250 gm moving with a velocity of 24 m/s is hit by a bat so that it acquires a velocity of 28 m // s in the opposite direction. The force acting on the ball, if the contact time is 1//100 of a second, will be -

A pitcher throws a 0.140 -kg baseball, and it approaches the bat at a speed of 40.0 m/s. The bat does W_(nc)= 70.0J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 25.0 m above the point of impact.

A ball of mass 400 gm is dropped from a height of 5 m. A boy on the ground hits the ball vertically upwards with a bat with an average force of 100 newton so that it attains a vertical velocity of 20 m/s. The time for which the ball remains in contact with the bat is (g=10m//s^(2))

A ball of mass 50 g is dropped from a height of 20 m. A boy on the ground hits the ball vertically upwards with a bat with an average force of 200 N, so that it attains a vertical height of 45 m. The time for which the ball remains in contact with the bat is [Take g=10m//s^(2)]

A uniform moving cricket ball is turned back by hitting it with a bat for a very shart time interval. Show the variation of its acceleration with time. (Take acceleration in the back ward direction as positive).

A ball of the mass 400gm is dropped from a height of 5m. A boy on the ground hits the ball vertically upwards with a bat with an average force of 100N so that it attains a vertical height of 20m. The time for which the ball remains in contect with the bat is [ g=10m//s^(-2)]

(a) When a molecule (or an elastic ball) hits a (massive) wall, it rebounds with the same speed. When a ball hits a massive bat held firmly, the same thing happens However, when the bat is moving towards the ball, the ball rebounds with a different speed. Does the ball move faster or slower? (b) When gas in a cylinder is compressed by pushing in a piston. Its temperature rises. Guess at an explanation of this in terms of kinetic theory using (a) above (c) What happens when a compressed gas pushes a piston out and expands. What would you observe? (d) Sachin Tendulkar uses a heavy cricket bat while playing. Does it help him in any way?