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A lorry of mass 5000kg moved at a velocity of 40 ms-1. The lorry was then collided with a car of mass 1500kg at its back. The car was moving at a velocity of 35 ms-1 before the collision. After the collision, both vehicles attached and moved at a velocity v. Find the value of v.
The diagram shows part of a ticker tape pulled by a trolley of mass of m kg. While moving, the trolley collided with another non-moving trolley of mass 1.5kg. The trolleys stick together after the collision. Find the value of mass m.
A bullet weighing 30g is fired from a gun weighing 2.5kg. If the bullet that comes out from the end has a speed of 50ms-1, find the sum of the momentum before the shot.
A bullet of mass 30g is fired from a gun of mass 2.5kg. The speed of the bullet was 50ms-1 when it was coming out from the gun. Find the speed of the gun recoils.
A cannon fires a cannonball of mass 3.0kg at 35ms-1. The cannon recoil at 2.0 ms-1. What is the mass of the cannon?