Question

an object starts from rest with a uniform acceletion 8 metre/second^2 . in how much time will the objectattain a velocity of160 m/s and how much distancewill it travel in this time​

Answer 1

Step-by-step explanation:

Initial velocity, u = 0m/s

Acceleration, a = 8m/s²

Final velocity, v = 160m/s

We know,

v = u + at

160 = 0 + 8t

8t = 160

t = 20s

The object will take 20s to attain velocity of 160m/s

Now, we also know,

S = ut + 1/2at²

S = 0*20 + 1/2*8*20*20

S = 4*400

S = 1600m

Object will travel 1600m distance.

Answer 2

time taken is 2o seconds

distance travelled is 1.6 km