A car of mass 2000 kg is lifted up a distance of 30 m by a crane A in 1 minute as
shown in the figure given below. The second crane B does the same job in 2
minutes. (take g = 9.8 m/ s²)
If the efficiency of crane A is 55%, its input power is
(a) 7.81 kW (b) 9.46 kW (c) 17.82 kW (d) 72.85 kW
Answers
Answered by
1
Answer:
(a) 7.81kw h. nice guys nu
Answered by
1
Answer:
(a) 7.81 kw
Explanation:
you try again
Similar questions