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secondary 3 | E Maths
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please help me with these qns ( physics )
Date Posted: 5 years ago
Views: 234
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in the 1st qn, the given ans is 1000 N.
This is not possible.
becos if the driving force is 1000 N and the friction is 1000 N, the net force would be zero, and not 2 m/s².
When net force is zero, the net acceleration would be zero too. (<=exam tip!)
rem: zero net F means zero net acc.
=> also means constant velocity
hope this helps.
This is not possible.
becos if the driving force is 1000 N and the friction is 1000 N, the net force would be zero, and not 2 m/s².
When net force is zero, the net acceleration would be zero too. (<=exam tip!)
rem: zero net F means zero net acc.
=> also means constant velocity
hope this helps.
Date Posted:
5 years ago
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