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
#SPJ1
Explanation :
First considering Sid's statements, the description of tangential speed and centripetal acceleration are correct.
But for Centripetal force, the description is incorrect because centripetal force is always perpendicular to the velocity.
Sid's error can be corrected by the statement (b) i.e. "Centripetal force is perpendicular to the velocity of the satellite".
Answer:
You should multiply 60 kg*9.8 and answer will come.
Hope this will help you.
Answer:
Sunlight allows plants to perform photosynthesis, a process which is required for plant growth and health. ... Plants that are denied sufficient light will eventually lose their color and die. Plants deprived of light will grow upward, stretching their stems more rapidly that usual, searching for light.