Physics
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.
Related Questions
A train travels with a speed of 60 km h-1 from station A to station B and then comes back with a speed 80 km h-1 from station B to station A.
Find —
(i) the average speed, and
(ii) the average velocity of train.
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.
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.
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.