A block of mass 57.1 kg rests on a slope having an angle of elevation of 28.3°. If pushing downhill on the block with a force ju
st exceeding 177 N and parallel to the slope is sufficient to cause the block to start moving, find the coefficient of static friction.
1 answer:
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Answer:
The appropriate response will be "". A further explanation is given below.
Explanation:
According to the question,
⇒ ....(equation 1)
and,
⇒ ....(equation 2)
Now,
On dividing both the equations, we get
⇒
⇒
⇒
Answer:
(a) 153.37 g
(b) 5705 kJ
Explanation:
(a) To find the amount of bean needed by a man you first calculate the equivalence in beans to 2500kJ
Thus, 153.37 g has the energy needed by a man that needs 200kJ per day.
(b) The amount of energy per pot of bean is given by:
Thus, the energy is 5705kJ