Question

bus starting from rest moves with a uniform acceleration of 0.1 metre per second square for 2 minutes find the speed find the distance travelled​

Answer 1

Answer:

answer:-

A:-12m/s

B:-720m

Explanation:

a=0.2m/s²

t=120s(2min)

u=0m(as it starts from rest)

v=u+at

v=0+at=at

V=0.1*120=12m/s(a)

v²-u²=2as

144=2*0.1*s

72/0.1=s

∴s=720m(b)

Answer 2

Answer: The question says that the acceleration is uniform or constant hence we can apply equations of motion here .

1) Applying; v = u + at where u = 0 and t = (2*60 )secs ; v = 0.1*(2*60) = 12 m/s-1

2) Applying S = ut + 1/2 at2 ; 0*t + 1/2 (0.1*14400) = 720 m

Explanation: