A boy of mass 40 kg jumps off a stationary skateboard and moves horizontally with a speed of 1.5 m/s while the skateboard moves in the opposite direction with a speed of 20 m/s. Calculate the mass of the skateboard.

a

60 kg

b

40 kg

c

3 kg

d

2 kg

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Explanation

Correct Option
c

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Discussions (6)

Dwaybode
1 year ago

velocity of skate board in the question is 2.5 in the question pls update it my school

Tim234D
1 year ago

Greetings, The Myschool Team.
There is an error in the velocity of the skateboard given in the question. It should have been 20m/s and not 2.5m/s. This is apparent from the options and the explanation given. Please the values should be updated. Thank you.

Chrisbridge
1 year ago

Please, update the velocity of skateboard to 20 m/s. Thanks

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