Power = (work done) / (time to do the work)
= (21,000 Joules) / (30 seconds)
= (21,000 / 30) joule/sec
= 700 watts
Answer:
Time=3.1 seconds
Explanation:
Given data
Distance S=20 m
Velocity v=10×Sin60°
To find
Time after release
Solution
From equation of simple motion we know that
Using the convention that down is positive then
Apply Quadratic formula to solve t
Ignoring the -ve root then we have
t=3.1 seconds
Answer:
t = 10.82 s
Explanation:
Using the formula, t = (d·cosθ)/(ν)
t =
t=10.82 s
Never because even when it's on reverse its still accelerating