1. Roll a ball across a table into an object
2. Drop something
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Red clothes look red because they REFLECT the red light, and absorb light of other colors.
Answer: Your answer is<u> 1.36.</u>
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Answer:
External force on him will be 112 N
Explanation:
We have given the mass of the sprinter m =70 kg
Acceleration of the sprinter 
We have to find the net external force
According to second law of motion force = mass ×acceleration
Force is dependent on the mass and acceleration
So 
So external force will be 112 N