Question

use the formula v=u+at,to find the value of a,when u= -10,t= 3 and v= 20.
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Answer 1

Step-by-step explanation:

u = -10 m/s

v = 20 m/s

t = 3s

v = u+at

⇒20 = -10+a×3

⇒20 = -10+3a

⇒3a = 20+10

⇒3a = 30

⇒a = $\frac{30}{3}$

⇒a = 10 m/s²