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35 votes
35 votes
A 30 kg girl runs into a light pole at 2 m/s and stops within 0.1 seconds. How much force did the girl experience?

User Paul Mikesell
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1 Answer

22 votes
22 votes

According to problem -

mass= 10 kg;

velocity(v)= 2 m/s;

time(t)= 0.1 sec

Now we can give force(F) by


F=\text{ ma}

where a= acceleration


a=\text{ }(v)/(t)=(2)/(0.1)=20\text{ m/s}^2;

Now using force formula

F= ma= 30×20= 600 Newton

Therefore the girl will experience a force of 600 N.

User Dayton Wang
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2.9k points