A car is being driven at a speed of 20ms-1 when brakes are applied to bring it to rest in 5 s. The deceleration produced in this case will be
A. +4ms-2
B. -4ms-2
C. -0.25ms-2
D. +0.25ms-2
Answer:B
A car is being driven at a speed of 20ms-1 when brakes are applied to bring it to rest in 5 s. The deceleration produced in this case will be
A. +4ms-2 B. -4ms-2 C. -0.25ms-2 D. +0.25ms-2