distance traveled by a uniformly accelerated bike is given as
here we know that
now we will have from above equation
so it will cover the total distance of 300 m
If a magnet is broken into two pieces, what happens to the magnetic poles?
2 answers:
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Answer:
Explanation:
Given: that,
Angle of inclination of the surface,
mass of the crate,
Force applied along the surface,
distance the crate moves after the application of force,
a) work done = F× s
work done = 230 × 1.1
work done = 253 J
b) Work done by the gravitational force:
where:
g = acceleration due to gravity
h = the vertically downward displacement
Now, we find the height:
So, the work done by the gravity:
∵direction of force and displacement are opposite.
= - 343.54J
c)
The normal reaction force on the crate by the inclined surface:
d)
Total work done on crate is with respect to the worker: