Physics, 06.02.2021 14:00 xmanavongrove55
7. A ball is dropped from a height of 4.0 m. Just before it hits the ground it's momentum is 8.85 kg-m/s. What is the mass of the ball?
Answers: 1
. (Assumption: 
.) 
. 
.
of gravitational potential energy would have been converted to kinetic energy. Calculate the velocity of the ball at that moment:
.
.
of an object of mass 
and velocity 
would be 
. Rewrite this equation to find an expression for mass 
given velocity 
and momentum 
:
.
while its velocity is 
. Therefore, the mass of this ball would be:
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7. A ball is dropped from a height of 4.0 m. Just before it hits the ground it's momentum is
8.85 k...
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