Question

A car starts from rest and gains a velocity of 20 m/s in 0.2 second the acceleration is......​

Answer 1

Answer:

V = at

=>8 = a10

=> a = 0.8 m/s2

V²=U²+ 2as

=>U=8²+2x a64

=>a= -64/2x64 =-0.5 m/s

Distance travelled = Area of graph

=>584 =1/2 x 10x 8 x8 x t¹ +1/2x 16 x8

=>584 =40+8 t¹ +64

=>8t¹=480

=>t¹ = 60

Total time = 10+60+16=86s