Answer:
313.92w
Explanation:
Formula for power:
P=W/∆t = Fv
Givens:
m=20kg
∆y=4.0m
∆t=2.5s
a=9.81m/s²
In order to find power, we first need to solve for work.
W=Fd (force*displacement), f=mg
W=mg∆y
W=(20kg)(9.81m/s²)(4.0m)
W=784.8J
P=W/∆t
P=784.8J/2.5s
P=313.92 watts
Answer:
true
Explication:
The acceleration of an object depends on the mass of the object, and the amount of force applied
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Answer:
energy of motion decrease
Explanation:
yes
M = 4kg
F =8N
a..?
F =m.a
8 = 4.a
a = 2m/s^2
