If a car stops suddenly, seat belts help stop the motion of the people in the car. Seat belts in cars are usually 47 mm wide. A team of engineers is designing a car seat to hold a small child. They decide that the straps should be only 38 mm wide. Why do the straps in the car seat not need to be 47 mm wide?
A.
Less force is needed to stop a person that has less mass.
B.
A smaller person needs to accelerate less than a larger person.
C.
More force is needed to stop a person that has less mass.
D.
A smaller person needs to accelerate more than a larger person.