Asked by tiff
A 16kg stone falls 40m. Find the stone's kinetic energy just before it strikes the ground.
Answers
Answered by
Steve
velocity when stone hits the ground
v = √2as
KE = 1/2 mv^2 = 1/2 m * 2as = m*a*s
= 16 * 9.8 * 40 = 6272kg-m/s^2(N)
v = √2as
KE = 1/2 mv^2 = 1/2 m * 2as = m*a*s
= 16 * 9.8 * 40 = 6272kg-m/s^2(N)
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