Question

The haystack maker tractor lifted 120 kg of grass to a height of 5 meters in 6 seconds. Calculate the power of the haystack maker mechanism (g = 10m / san ^ 2)
Please help me,ASAP ! PLEASE

Answer 1

Answer:

1000 Joules per second.

Explanation:

To lift that much grass 5 meters higher than it was before the tractor did work that is the product of the (force needed to overdo gravity) and (displacement):

$W = mg\Delta h=120kg\cdot 10\frac{m}{s^2}\cdot 5m = 6000J$

Power is work over the amount of time:

$P = \frac{W}{\Delta t}=\frac{6000J}{6 s} = 1000 \frac{J}{s}$