Answer:
Explanation:
The potential energy of a body can be found by using the formula
PE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
We have
PE = 134 × 9.8 × 72 =94,550.4
We have the final answer as
Hope this helps you
a = 0 m/s²
Static friction = Fn*μ = 50 * 0.5 = 25 N
25 N > 20 N
As the static friction is more than the force applied, the box will not move ;
120
cant explain trust me.
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the circles are called Sun spots. they are colder than the surrounding area.