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A man weighing 60 kg climbs a staircase ...

A man weighing 60 kg climbs a staircase carrying a 20 kg load on his hand. The staircase has 20 steps and each step has a height of 20 cm. If he takes 20 second to climb, his power is :

A

160 W

B

230 W

C

320 W

D

80 W

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A man weighing 60 kg climbs up a staircase carrying a load of 20 kg on his head. The stair case has 20 steps each of height 0.2 m. If he takes 10 s to climb find his power

    A
    313.6 W
    B
    120.6 W
    C
    510 W
    D
    0

  • A man weighing 80 kg climbs a staircase carrying a 20 kg load. The staircase has 40 steps, each of 25 cm height. If he takes 20 seconds to climb, the work done is

    A
    9800 J
    B
    490 J
    C
    `98 xx 10^(5) J`
    D
    7840 J

  • A man weighing 50 kg, climbs up a staircase carrying a bag of 10 kg on bis head. The staircase has 15 steps and each steps has a height of 20 cm. What is the power required by the man, if he takes 10 seconds to climb the staircase?

    A
    120w
    B
    150.5W
    C
    176.4w
    D
    200W

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