the bowling speed of Shoaib Akhtar is 144 kilometre per hour find in what time the ball reaches the batsman considered that the batsman is standing at a distance 20m from the bowling crease​

A boy walking at a speed of 20 km/h reaches his school 30 min late. Next time he in- creases his speed by 4 km/h but still he is late by 10 min. Find the distance of the school from his home.

A bike consumes 20 mL of petrol per kilometre, if it is driven at a speed in the range of 25-50 km/hour and consumes 40 mL of petrol per kilometre at any other speed. How much petrol is consumed by the bike in travelling a distance of 50 km, if the bike is driven at a speed of 40 km/hour for the first 10 km, at a speed of 60 km/hour for the next 30 km and at a speed of 30 km/hour for the last 10 km?

A ball of mass 1kg is dropped from a height of 5m. (a) Find the kinetic of the ball just before it reaches the ground (b) What is the speed at this instant?

If a child goes to his school at the speed of 40 km/h. He reaches 2 hours early and if the travels at the speed of 30 km/h then the reaches 1 hour early. Find out his actual speed and distance actual time taken in order to reach at time.

A platform is moving upwards with a constant acceleration of 2 m s^-2 . At time t = 0 , a boy standing on the platform throws a ball upwards with a relative speed of 8 m s^-1 . At this instant, platform was at the height of 4 m from the ground and was moving with a speed of 2 m s^-1 . Take g = 0 m s^-2 . Find (a) when and where the ball strikes the platform. (b) the maximum height attained by the ball from the ground. ( c) the maximum distance of the ball from the platform.

Distance between A and B is 450 km. A car and a bus travel from A to B speed of car is 20 km/h more than that of bus. After travelling 2/3rd distance car stops for 2 hours and after that remaining distance is covered at 2/3rd of initial speed and reaches at B. Bus after travelling 1/3rd of distance stops for 1 hour and after that increases its speed by 25% and reaches at B at the same time as the car. Find the speed of bus and car and also find the time taken it took the car and the bus to reach at B.

ball is thrown vertically upwards with a velocity of 20 m/s from the top of a building of height 40 m from the ground. (i) How high the ball reaches? (ii) How long will it take to reach the ground ? (iii) What is the speed at which it strikes the ground?

Ramesh is walking at speed of 10 kilometres per hour.After every kilometre he takes rest for 5 minutes.The time taken to cover distance of 5 kilometres by Ramesh is backslash30backslash m in ute b.35backslash m in utes c.50backslash m in utes d.55backslash m in utes