You accelerate your 1500 kg car from 2 m/s to 12 m/s in 2 seconds. how do you determine
the cars acceleration initial momentum final momentum change in momentum the force required to do this?

1) The acceleration

Acceleration = Change in Speed / Time
Acceleration = (12 - 2) / 2
Acceleration = 10 / 2
Acceleration = 5m/s^2 (This is the unit for acceleration)

2) Initial momentum

Momentum = Mass x Velocity
Momentum = 1500 x 2
Momentum = 3000kg m/s (This is the unit for momentum)

3) Final momentum

Momentum = Mass x Velocity
Momentum = 1500 x 12
Momentum = 18000kg m/s

4) Change in momentum

Change in momentum = Final momentum - Initial momentum
Change in momentum = 18000 - 3000
Change in momentum = 15000kg m/s

5) Force

Force = Mass x Acceleration
Force = 1500 x 5
Force = 7500N (This is the unit for force)

Hope that helps :)

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