Question

v=0 (stone is thrown upward) u=5m/s a=10m/s². (stone is thrown upward). sec=?
time=?
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Answer 1

Answer:

v=u+at

0=5+10t

10t=-5

t=-1/2

Answer 2

Answer:

0.5 Seconds

Explanation:

Given, u = 5 m/sec, v = 0 m/sec, a= 10m/sec^2

Use formula = v-u = at

Putting in equation, 0- 5 = 10 t

we will get, t = -5 sec (which is not possible, time can't be -ve)

Hence, 0.5 is the answer

Hope this will help you