Question

a ball is thrown vertically upwards with avelocity of 30m/s if the acceleration due to gravity is 10m/s what will be the distance travelled by it's the last seccond of moition before again come to his hand.​

Answer 1

i think this is correct

Answer 2

Answer:

30m/s

Explanation:

For upward motion:- u=30, g=-10

using third equation of motion, v²=u²+2gh

0=900-20h

h=45

For downward motion:- u=0, g=10

using third equation of motion, v²=u²+2gh

v²=0+2*10*45

v²=900

v=30m/s