I'm going to ignore the <em>sd</em> as a typo and answer the rest of it.
Friction will slow down an object, and the force will create heat to warm the object up. When there's a lot of friction, sound can be heard as more energy is transferred.
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<em>Answer</em>
Force = 170 N
<em>Explanation</em>
First find the distance (d) travelled by the bulldozer.
Sin 35 = 15/d
d = 15/(sin 35)
= 26.15m
Now;
work done = force × distance.
4500 J = force × 26.15
dividing both sides by 26.15,
Force = 4500/26.15
= 172.07 N
Answer to two significant figures = 170 N
Answer:
what is speed
how to tell what speed an objeckt is moveing
vlocity
Explanation:
The object keps going cause of wind friction
