Physics
30.01.2021 15:19
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15newtons is used to push a box along the floor a distance of 3 meters. how much
15newtons is used to push a box along the floor a distance of 3 meters. how much work was done
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andeaGonzllezz
4,9(96 marks)
2.5 kg.m/s
Explanation:
Taking left side as positive while right side direction as negative then
Momentum, p= mv where m is the mass of the object and v is the velocity of travel
Momentum for ball moving towards right side=mv=2.5*-3=-7.5 kg.m/s
Momentum for the ball moving towards the left side=mv=2.5*4=10 kg.m/s
Total momentum=-7.5 kg.m/s+10 kg.m/s=2.5 kg.m/s
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