The angle between incident ray and reflected ray is 130.what is the value of angle of incidence
2 answers:
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Answer:
v = 8.45 m/s
Explanation:
given,
mass = 3 kg
angle = 30.0°
vertical distance = 3.3 m
μ = 0.06
according to conservation of energy
KE(loss) = PE(gain) + Work done (against\ friction)..............(1)
frictional Force
work against friction
W = F d
Potential energy
PE = mgh
v = 8.45 m/s
the minimum speed is equal to 8.45 m/s
Answer:
<em>585lb</em>
Explanation:
Given the formula for calculating the magnitude of the resultant force as;
<em>Given </em>
<em></em><em></em>
<em>Hence the magnitude of the resultant force is 585lb</em>