Q)
(chatquestion)...UNIT 4
As a block falls through the air by 40m it does work equal to
5 Calculate the kinetic energy of a ball of mass 50 g travelling at
30 m/s. How much work will need to be done to stop the ball?
sed
-1800 J. Determine the mass of the block.
6A mass of 2.0 kg is hung off a spring, which extends 2 cm
Determine the energy stored in the spring.
lluinto the air The sr
1 Answer
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