If the speed is constant
v = 72000 meters / 3600 seconds = 20 meters/second
multiply by 36 seconds to get distance
power = force * speed = 280 Newtons/ton * 20 tons * 20 meters/second
that is joules /second which is Watts
A truck with a mass of 20t has tractive resistance of 280 N/t if it travels speed of 72 km/h .calculate
The distance travelled in 36s
2 . The power required for that speed
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