HARD
AS and A Level
IMPORTANT
Earn 100

A parachutist of mass 70 kg falls out of an aeroplane from a height of 2000 m and falls under gravity until 600 m from the ground when he opens his parachute. The parachute provides a resistance of 2330 N. Find the speed at which the parachutist is travelling when he reaches the ground.

Important Questions on Force and Motion in One Dimension

MEDIUM
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2C>Q 15
A ball is thrown vertically up at 10 m s-1. One second later another ball is thrown vertically up from the same point at 8 m s-1. Find the height at which the balls collide.
HARD
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2C>Q 16
A pebble is dropped from rest into a deep well. At time t s later it splashes into the water at the bottom of the well. Sound travels at 340 m s-1 and is heard at the top of the well 5 s after the pebble was released. Find the depth of the well.
HARD
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2C>Q 17
A ball of mass 2 kg is projected up in the air from ground level with speed 20 m s-1. It experiences constant air resistance R. It returns to ground level with speed 15 m s-1. Find R.
HARD
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2D>Q 1
An elevator is carrying a man of mass 70 kg upwards, accelerating at constant acceleration from rest to 10 ms-1 in 2 s. Find the size of the normal contact force on the man.
MEDIUM
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2D>Q 2
An elevator is carrying a woman of mass 55 kg upwards. It is travelling upwards at 8 m s-1 and starts to slow down at a constant rate when it is 9 m from where it stops. Find the size of the normal contact force on the woman.
MEDIUM
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2D>Q 3
An elevator is carrying a trolley of mass 30 kg downwards, accelerating at a constant rate from rest to 7 m s-1 in 2 s. Find the size of the normal contact force on the trolley.
MEDIUM
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2D>Q 4
An elevator is carrying a child of mass 40 kg downwards. It is travelling at 8 m s-1 and starts to slow down at constant acceleration when it is 6.25 m from where it stops. Find the size of the normal contact force on the child.
MEDIUM
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2D>Q 5

A forklift truck carries a wooden pallet. On the pallet is a box of tiles with mass 35 kg. The truck lifts the pallet and tiles with an initial acceleration of 2 m s-2. Find the normal contact force on the tiles.

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