A bulldozer does 4,500 J of work to push a mound of soil to the top of a ramp that is 15 m high. The ramp is at an angle of 35°

Question

2 years ago

10

to the ground. How much force did the bulldozer apply to the mound of soil? Round your answer to two significant figures.

2 answers:

qaws [65] · Answer 1 · 2022-07-04T23:26:52+03:00

qaws [65]2 years ago

7 0

Answer:

520

Explanation: answer on edge

spin [16.1K] · Answer 2 · 2022-07-04T21:54:51+03:00

<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