Physical Science Essential Question: How can the scientific process be used to help us investigate and understand natural phenom
1 answer:
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Answer: 1333 m
the length of runway it will need is S = (m)
Explanation:
Answer:
a) 855.41J
b) 855.41J
Explanation:
The force equation is
N - mg - F sinθ = 0
N = mg + F sinθ
The frictonal force is =
substitute the value of the normal force in the above equation
= 151.96N
a) work done = F × d
= (151.96) × (6.5) cos30°
= 855.41 J
b) The increase in thermal energy of the block floor system will be equal to the work done by the worker
work done = F × d
= (151.96) × (6.5) cos30°
= 855.41 J