If the velocity is , then the magnitude of acceleration at t = 0.5 s is
A. 1m s-2
B. 2 m s-2
C. zero
D. -1 m s-2
Answer:A
If the velocity is , then the magnitude of acceleration at t = 0.5 s is
A. 1m s-2 B. 2 m s-2 C. zero D. -1 m s-2