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acts on a body. The body accelerates uniformly with an acceleration of 
. Calculate its mass.
. A force of 
acts on it. At what acceleration does it move?
and 
act on a trolley with a mass of 
. In which direction is the trolley moving and what is the acceleration?
has a wagon with a mass of 
attached to it. The combination accelerates with an acceleration of 
. With what force does the locomotive engine work and with what force does the locomotive pull the wagon?
. The weight of the parachute is 65 kg. What is the force of air resistance? What would the parachutist have to do to fall at a lower speed?
acts on an object of mass 
for 
. What is the change in velocity of the object?
on the car. Resistive forces 
also act on the car, as shown.
and an acceleration of 
. What is the value of 
, the total drag force is 
. The mass of the car is 
and the driving force is constant at 
. Which statement about the acceleration of the car at 
but will decrease as time passes.
but will decrease as time passes.
acts on a body of mass 
for a time 
. During this time, the velocity of the body increases from 
to 
. Which equation relates 
. A constant resultant force acts on the car and the car accelerates from 
to 
in 
. What is the magnitude of the resultant force acting on the car?
acts for 
on a car of mass 
. This causes the velocity of the car to double. What is the final velocity of the car?
. A boy pushes on the cart horizontally with a force of 
. The cart accelerates at 
. What is the frictional force acting on the cart?
is pulled across a horizontal floor by a force of 
. The frictional force acting on the box is 
. What is the acceleration of the box?
to 
in a time of 
. It has a mass of 
. What is the resultant force on the object?
acts on an object of mass 
for 
. What is the change in velocity caused by this force?
to 
in 
. The accelerating force is 
. What is the mass of the object?
. It decelerates from 
to 
when a resultant force of 
acts on it. For how long does the force act?
. The total resistive force on the car is 
, as represented in the figure below.
. A resultant force of 
acts on the boat. Calculate the acceleration of the boat.
