Question 53:
A man throws a ball weighing 500 g vertically upwards with a speed of 10 m/s.
Lakhmir Singh Physics Class 9
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Answer:
-5kg.m/s
Explanation:
mass=500/1000=0.5 velocity=-10m/s because it is thrown upwards momentum =mass×velocity momentum=0.5×-10=5kg .m/s
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