A car moving at 25 m/s crashes into a tree and stops in 0.3 s. Calculate the for

Question

A car moving at 25 m/s crashes into a tree and stops in 0.3 s. Calculate the force the seat belt exerts on a passenger in the car to bring him to a halt. The mass of the passenger is 89 kg. (Enter the magnitude.) A 0.950 kg hammer is moving horizontally at 5.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. Calculate the duration of the impact. What was the average force exerted on the nail? When a hammer strikes a nail, it is compressed along its length. Suppose that a steel nail 9.00 cm long and 3.00 mm in diameter is compressed an average of 65.0 mu m by a 0.445 kg hammer during a 1.20 ms collision. what average force was exerted on the nail by the hammer? What is the impulse imparted to the hammer? If the hammer is moving at 7.00 m/s just before the collision, what is its final velocity?

Explanation / Answer

multiple questions allowed to solve only 1 question at a time.

soln 1 ) net F = delta p / delta t

net F = 25 m/s * 89 kg / ( 0.3 s )

net F = 7416.67 Newton ===============================ANSWER)

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