<span>F=ma = 3000x2m/sec^2 =6000 newtons. </span>
30mi/6hrs is a speed of 5 mph, which converts to a pace of 12 min/mi.
Answer:
a).11.546J
b).2.957kW
Explanation:
Using Inertia and tangential velocity
a).


Now using Inertia an w

average power=
b).
power=t*w
P=
P=2.957 kW
Answer:
40 j, 80j.
Explanation:
P.E= mgh. G=10 m/s².
For 4m, P.E=1*10*4=40 joules.
For 8m, P.E=1*10*8=80 joules.