A machine is operated by an effort of 80 N acting downward and moving displacement of 0 15 m - Physics - Machines

Question

A machine is operated by an effort of 80 N acting downward and
moving
displacement of 0 15 m The load of mass 10 kg is raised up by 10 cm
Calculate
M A, VR, Work input, useful work output and efficiency (g =
10m/s
2
)

Anshu Agrawal · Accepted Answer

Solution:

MA = output forceinput force = loadeffort = 10080 = 10/8Velocity ratio = distance moved by effortdistance moved by load = 0
15 m10 cm  =3/2efficiency = MAVR = 10/83/2 = 10/12 = 5/6work input = input force×distance = 80×0
15 = 12 jwork out put = output force ×distance = 100×10/100 = 10J

A machine is operated by an effort of 80 N acting downward and moving displacement of 0.15 m. The load of mass 10 kg is raised up by 10 cm. Calculate M.A, VR, Work input, useful work output and efficiency. (g = 10m/s 2 )

A machine is operated by an effort of 80 N acting downward and moving
displacement of 0.15 m. The load of mass 10 kg is raised up by 10 cm. Calculate
M.A, VR, Work input, useful work output and efficiency. (g = 10m/s
2
)