Question

a ball is thrown vertically upwards with a velocity of 49m/s. Calculate
(1) the maximum height to which it rises
(2) the total time it takes to return to the surface of Earth​

Answer 1

Answer:

initial velocity =49m/s

final velocity =0m/s

acceleration due to gravity =-9.8m/s

maximum height =?

we know for a freely falling body

V (square)=u(square)+2gh

(0)-(49m/s) {square }=-2*9.8m/s {square}

height =122.5m

b. ]

time taken to reach the highest point =?

we know, g=v-u/t

t=0m/s -49m/s/-9.8m/s

time =5 s

time taken by the ball to return to the surface of earth =

5s+5s=10s