Question

A body moves from rest with a constant acceleration of $5m/s^{2}$. Its instantaneous speed (in $m/s)$ at the end of 10 sec is

• A. 50
• B. 5
• C. 2
• D. 0.5

Answer 1

Answer: (A)

50

Answer 2

$v = u + at \Rightarrow v = 0 + 5 \times 10 = 50\mspace{6mu} m/s$