q2
(3) (a) A car accelerates at a constant rate of 1.83m/s2 along a flat straight road.
The force acting on the car is 1.870 kN.
Calculate the mass of the car.
Give your answer to three significant figures. (3)
The force acting on the car is 1.870 kN.
Calculate the mass of the car.
Give your answer to three significant figures. (3)
mass = ........................................... kg
(b) The car accelerates from rest for 16 s.
Calculate the speed of the car after 16 s.
(3)
speed = ........................................... m/s
(c) The car starts on another journey.
Figure 6 shows the graph of the car’s movement.
Show that the distance travelled when the car is moving at a constant speed is greater than the distance travelled when the car is slowing down.
(4)
(Total for Question 3 = 10 marks)
(Total for Question 3 = 10 marks)