A. <span>I .................
</span>
Answer:
The speed of the vehicle changes in each second is, v = 0.00111 Km/h
Explanation:
Given,
The acceleration of the vehicle, a = 4 Km/h²
Converting it into m/s,
a = 0.0003086 m/s²
In each second the vehicle covers 0.0003086 m
The speed of the vehicle in each second is given by 0.0003086 m/s
Converting it into Km/h
v = 0.00111 Km/h
Therefore, the speed of the vehicle changes in each second is, v = 0.00111 Km/h
Answer:
According to newton second law of motion (Force=mass×acceleration) F=ma here m=50kg and a=2m/sec² so F=50×2=100N so Force=100N
-- drop it on the floor; -- hit it with a hammer; -- heat it red hot in a flame; -- wrap many turns of wire around it and pass a high AC current through the wire.