In: Physics
A bat strikes a 0.145-kg baseball. Just before impact, the ball is traveling horizontally to the right at 60.0m/s , and it leaves the bat traveling to the left at an angle of 35? above horizontal with a speed of 65.0m/s . The ball and bat are in contact for 1.85ms . |
Part A Find the horizontal component of the average force on the ball. Take the x-direction to be positive to the right Express your answer using two significant figures.
SubmitMy AnswersGive Up Part B Find the vertical component of the average force on the ball. Express your answer using two significant figures.
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mass m = 0.145 kg
In horizontal direction : -
Initial velocity u = 60 m / s
Final velocity v = 65 cos 35
= 53.24 m / s
Since after impact it moves with a velocity 65 m / s above horizontal
contact time t = 1.85ms .
= 1.85 x 10 -3 s
the horizontal component of the average force on the ball = m( u - v ) / t
= 529.45 N
= 530 N
In vertical direction : -
Initial velocity u '= 0 SInce it oves horizontal before impact
Final velocity v '= 65 sin 35
= 37.28 m / s
the vertical component of the average force on the bal = m( v '- u ') / t
= 2922 N
= 2900 N