A car of mass 1500kg moving at 31 m/s decelerates and stops in a distance of 75m.

Calculate the deceleration of the vehicle (2 marks)

Estimate the braking force on the car. (2 marks)

Aphysical change is a change in the size, shape,, or stafe of matter true or false

How many atoms of nitrogen are in the chemical formula ni(w on

Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?