A hammer of mass 500 g, moving at 50 m s-1, strikes a nail. The nail stops the hammer in a very short time of 0.01 s. What is the force of the nail on the hammer?
NCERT Class IX
Sciences - Main Course Book
Chapter 9. Force and Laws of Motion
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m = 500 gms v = 50 m/sec
t = 0.01 sec.
Force = change of momentum / time duration
F = (0 - m v) / t
= - 500 * 50 / 0.01 Newtons
= - 25 * 10^5 Newtons
t = 0.01 sec.
Force = change of momentum / time duration
F = (0 - m v) / t
= - 500 * 50 / 0.01 Newtons
= - 25 * 10^5 Newtons
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