Question

2. The graph given alongside shows how the speed of a car changes with time.
(i) What is the initial speed of the car?
(ii) What is the maximum speed attained by the car?
(iii) Which part of the graph shows zero acceleration?
(iv) Which part of the graph shows varying retardation?
(v) Find the distance travelled in first 8 hours.

Answer 1

Explanation:

i) The initial speed of car is 10km/h

ii) 35 km /h

iii) Between point B and C

iv) Between point C and D

v) Speed = 35 km /h

Time = 8 h

Distance = speed ×time

35 km /h × 8 h

280km