Only questions number 2 PLZ IS TAKING FOR EVER
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a) work done= mgh
=2*(-10)*1 ( since acceleration is
downwards)
=-20 joules.
b) work done=0 because work by gravitational force in a closed path is zero.. because it a conservative force.
=2*(-10)*1 ( since acceleration is
downwards)
=-20 joules.
b) work done=0 because work by gravitational force in a closed path is zero.. because it a conservative force.
Answered by
1
W=ma×s
W=2×9.8x1
W=19.6joule
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