a) M*g*H/t = 5*9.8*10/10 = 49 W
b) If it is released from 10 meters up,
V = sqrt(2gH) = 14.0 m/s
I used g = 9.8 m/s^2. Perhaps they told you to use 10 instead. It isn't that hard to remember the correct value.
A 5.o kg box is lifted to a height of 10 meters at a constant speed.
a)How much power is required to complete this task in 10 seconds?
b)Calculate the velocity of the box just as it hits the ground?
i have the answers but i need a second opinion
a)50 watts
b)?
1 answer
1 answer