A car weighing 9800 N moves around a circular track of 70 m in 60 s.
(a)
To find the speed of the car, we need to divide the distance travelled by the time taken.
Distance = 70 m
Time taken = 60 s
Speed = Distance / Time taken
Speed = 70 m / 60 s
To solve this equation, we need to divide 70 by 60:
Speed ≈ 1.17 m/s
Therefore, the speed of the car is approximately 1.17 m/s.