Questions and answers by

atiyya

Questions (7)

A boy has a mass 40kg and a girl of mass 30kg play on a see-saw, where must the girl sit to make it balance?
1. 2 answers
2. 718 views
A girl uses a spanner of length 20cm to tighten a nut. IF she pulls at right angles to the end of the spanner with a force of
1. 4 answers
2. 970 views
A uniform plank AB which is 75m long and has a weight of 350N and is supported horizontally by two vertical ropes A and B. A
1. 1 answer
2. 694 views
A girl uses a spanner of length 20cm to tighten a nut. If she pulls at right angles to the end of the spanner with a force of
1. 1 answer
2. 465 views
A duck is swimming across a river. The duck can swim at maximum speed of 2m\s in still water. If the duck i swimming as hard as
1. 3 answers
2. 968 views
A boat is heading directly North acroos a river at 5km\h. The river is flowing east at 3km\h.a) what is the actual velocity of
1. 2 answers
2. 676 views
a duck is swimming across a river.The duck can swim at maximum speed of 2m\s in still water. If the duck is swimming as hard as
1. 3 answers
2. 1,066 views

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