Question

find initial velocity if. a=5m/s², s=8.4s, v=10m/s 

4m/s

0.4m/s

16m/s

1.6m/s​

Answer 1

Answer:

v=10m/s

a=5m/s²

s=8.4m

Explanation:

by using third equation of motion

v²-u²=2aS

(10)²-u²=2×5×8.4

-u²=84-100

-u²=-16

u²=16

u=4m/s

Answer 2

Answer:

Using third equation of motion

V² = U² + 2as

(10)² = U² + 2(8.4)(5)

100 = U² + 84

U² = 100 - 84

U² = 16

U² = (4)²

U = 4m/s

Explanation:

^_^ .. Hope It Helps You Dear .. ^_^