Question

An object is thrown vertically upwards and rises to a height of 10 m.
Calculate (i) the velocity with which the object was thrown upwards and (ii) the
time taken by the object to reach the highest point.​

Answer 1

Answers: for g = 10 m sqr per sec

1. 14.14 m per sec
2. 1.414 sec

Explanation:

1. Use v sqr - u sqr = - 2gh

v = 0;

u sqr = 2gh

u = sqrt (2gh)

2. us v = u - gt

subs u, v, g