A 900 kg car is traveling west at 25 m/s. An SUV with a mass of 1,500 kg is traveling at 10 m/s east, heading straight for the car. The car and SUV collide and stick together.

A.) Momentum of the car before collision=

B.) Momentum of SUV before collision=

C.) Determine the speed of the car and SUV after the collision.

Question

Physics

Moreno

12 April, 17:05

A 900 kg car is traveling west at 25 m/s. An SUV with a mass of 1,500 kg is traveling at 10 m/s east, heading straight for the car. The car and SUV collide and stick together.

A.) Momentum of the car before collision=

B.) Momentum of SUV before collision=

C.) Determine the speed of the car and SUV after the collision.

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Answers (1)

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Hebert · Answer 1

'c' is for car, 's' is for SUV.

A) Pc=Vc*Mc=25*900=22'500 Kg*m/s

B) Ps=Vs*Ms=1500 * (-10) = - 15000 Kg*m/s

C) after the collision : P=Ps+Pc=22500-15000=7500 Kg*m/s hence its speed it V=P/M=P / (Mc+Ms) = 7500 / (1500+900)) = 3.125 m/s