Physics
When brakes are applied to a bus, the retardation produced is 25 cm s-2 and the bus takes 20 s to stop.
Calculate —
(i) the initial velocity of bus, and
(ii) the distance travelled by bus during this time.
Related Questions
A train is moving with a velocity of 90 km h-1. It is brought to stop by applying the brakes which produce a retardation of 0.5 m s-2.
Find —
(i) the velocity after 10 s, and
(ii) the time taken by the train to come to rest.
A car travels a distance 100 m with a constant acceleration and average velocity of 20 m s-1. The final velocity acquired by the car is 25 m s-1.
Find:
(i) the initial velocity and
(ii) acceleration of car.
A body moves from rest with a uniform acceleration and travels 270 m in 3 s. Find the velocity of the body at 10 s after the start.
A body moving with a constant acceleration travels the distances 3 m and 8 m respectively in 1 s and 2 s.
Calculate —
(i) the initial velocity, and
(ii) the acceleration of body.