If the bowling ball rolls into a pillow and stops in 0.5 s, what is the average force it exerts on the pillow?

1 Answer
A08
Jun 24, 2017

The weight of a bowling ball can range from 6 to 16 pounds, the average adult male will generally use a ball that weighs between 14 and 16 pounds. The average adult female will generally use a ball that weighs between 10 and 14 pounds.

Let us take mass of bowling ball #= 5 kg#
Ideal speed of bowl measured at impact with the pins#=17+-mph#
Speed of bowl when released in a lane #=21+-1 mph#

Let's assume that bowl rolls with speed #=20mph~~9ms^-1#

We know that

#"Impulse" = "Change in momentum"#
And

#"Force" xx "time" ="Impulse"#
#=>"Force" xx "time" ="Change in momentum"#

Inserting given values we get

#"Average Force" xx 0.5 =0-5xx9#
#"Average Force" =-45/0.5=-90N#
#-ve# sign shows that it is retarding force.

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