Question

10.Draw a velocity –time graph and calculate the distance travelled & acceleration of the car in 50 sec Velocity (m/s) 5 10 15 20 25 30 Time (sec) 0 10 20 30 40 50

Answer 1

distance travelled = area under Vt graph

= area of trapezium OABC

= 1/2 (OC+AB)OA

= 1/2( 5+30)50

= 25× 35

= 875

acceleration is slope

= (10-5)/(10-0)

= 5/10

= 1/2