A. The efficiency of the ramp is 54.6 %.
<h3>Velocity ratio of the ramp</h3>
V.R = distance moved by effort/distance moved by load = L/h
V.R = (6.12)/(1.53) = 4
<h3>Mechanical advantage of the ramp</h3>
M.A = Load/Effort
M.A = (451 x 9.8)/(2025)
M.A = 2.183
<h3>Efficiency of the ramp</h3>
E = (M.A / V.R) x 100%
E = (2.183 / 4) x 100%
E = 54.6 %
Thus, the efficiency of the ramp is 54.6 %.
Learn more about efficiency here: brainly.com/question/15418098
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Answer:
No, the apparent weight will be different.
Explanation:
Although the mass is still the same, the apparent weight will be different. This is because of the centripetal acceleration caused by the Earth's rotation. At the poles, there is no centripetal acceleration. The closer you get to the equator, the larger the centripetal acceleration becomes, and the lower the apparent weight becomes.
Yeah it feels weird, it gives me goosebumps. Im a boy actually, but when I think my self as a girl it just cringes me. But I also wonder how would my life would change.
B. A machine changes the magnitude or direction of the force. Hope that helped.