A ball is dropped from a top of a tower of height 80 m. Calculate (a) the time taken when it reaches 60 m from the ground. (b) the velocity when it reaches 40 m from the top of tower. (c) velocity when it hits the ground. (d) the time taken to reach the ground.(Take g=9.8m/s2).                     a. The time taken when it reaches 60 m from the ground in seconds is   Answer for part 1 b. The velocity when it reaches 40 m from the top of tower in m/s is Answer for part 2 c. The velocity when the ball hits the ground in m/s is Answer for part 3 d. The time taken by the ball to reach the ground in seconds is

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –