Question

Which of the following statements is true in the case of a collision?

A)Increased impact time will increase the impact force.
(B)Reduced impact velocity will increase the impact force/
(C)reduced impact mass will increase the impact force
(D)Reduced impact time will increase the impact force.

Answer 1

Answer;

Reduced impact time will increase the impact force.

Explanation;

• Impact also known as impulse is the change in momentum of a moving body.
• According to the second Newton's law of motion the rate of change in linear momentum is directly proportional to the resultant force. From this law, the impulse or impact is given by the product of resultant force and time.
• From the relationship between impulse, time and resultant force, increasing the time over which momentum changes, causes a reduction in the force on the object.
• Therefore, If the impact time is increased then the change in momentum occurs over a longer period of time and this reduces the force .

Answer 2

"Reduced impact time will increase the impact force" is the one statement among the following choices given in the question that is true in the case of a collision. The correct option among all the options that are given in the question is the fourth option or option "D". I hope the answer has helped you.