Question

if a ball is thrown vertically upwards with a velocity of 40 metre per second then velocity of ball of the two seconds is take g as 10and metre per second​

Answer 1

Answer:

Since g is 10 and ball is thrown vertically up therfore retardation will occur at a rate of 10 m per seconds square so after two sec the velocity of the ball will be 20m per second

Explanation:

This is a short trick step wise can be done by using equations of motion if you didn't understand comment on this answer I'll send u the pic of the solution