Question

Really simple answer if you know please

A 400 kg box and a 200 kg are to pushed across a horizontal table, the exact same distance with the exact force. Which box will have the most work done on it? Which box will get to the end first? Explain both of your responses.

Answer 1

1. Box A

2. Box B

Step-by-step explanation:

Box A has the greatest mass. As mass is directly proportional to Work. ie. Work= Force * Distance and Force= mass* acceleration. So,

Work = Mass* Acceleration * Distance

Box B reaches the end first as according to newtons second law, acceleration is inversely proportional to mass.Since, box B has the less mass, it will have higher acceleration and cover more distance.(Distance is directlyproportionalto speed)