A car is moving at a speed of 25km/h and come to rest. The time taken

1.	A car is moving at a speed of 25km/h and come to rest. The time taken for the car to come to rest is 2 hr. Find the acceleration of the car and distance travelled
Answer» Explanation: U = 25 km/hr as it comes to rest so V = 0 t = 2hr so by using v = u + at 0 = 25 + a2 -25 = a2 a = -25/2 = 12.5km/hr^2 for distance S = ut + 1/2 at^2 = 252 +1/2 12.52^2 =50+1/2 * 12.5*4 = 50+ 25 = 75KM

A car is moving at a speed of 25km/h and come to rest. The time taken for the car to come to rest is 2 hr. Find the acceleration of the car and distance travelled

Answer»

Explanation:

U = 25 km/hr

as it comes to rest so V = 0

t = 2hr

so by using v = u + at

0 = 25 + a*2

-25 = a*2

a = -25/2 = 12.5km/hr^2

for distance S = ut + 1/2 at^2

= 25*2 +1/2 12.5*2^2

=50+1/2 * 12.5*4

= 50+ 25

= 75KM

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A car is moving at a speed of 25km/h and come to rest. The time taken for the car to come to rest is 2 hr. Find the acceleration of the car and distance travelled

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