Momentum and CollisionHard
Question
A 150g tennis ball coming at a speed of 40m/s is hit straight back by a bat to a speed of 60m/s. The magnitude of the average force F on the ball, when it is in contect for 5 ms, is:
Options
A.2500N
B.3000N
C.3500N
D.4000N
Solution
The change in momentum
ᐃp = m(vf - vi)
= 0.150(60 - (-40))
= 0.150 × 100 = 15Ns
Thus, F =
= 3 × 103N
ᐃp = m(vf - vi)
= 0.150(60 - (-40))
= 0.150 × 100 = 15Ns
Thus, F =
= 3 × 103NCreate a free account to view solution
View Solution FreeMore Momentum and Collision Questions
A piece of ice with a stone frozen in it on water is kept in a beaker. The level of water when ice completely melts -...A wheel has angular acceleration of 3.0 rad/s. In a time of 2 s it has rotated through an angle (in radian)of...The standard reduction potentials for Zn2+ / Zn,  Ni2+ / Ni and Fe2+ / Fe are - 0.76, - 0.23 and - 0.44 V respectiv...A rain drop of radius 0.3 mm has a terminal velocity in air 1 m/s. The viscosity of air is 18 × 10-5 poise. The vis...A balloon filled with air is weighted, so that it barely floats in water as shown in figure. When it is pushed down so t...