1.

A man raises a weight of 1 kg to a height of 1 m and holds it there for 30 s. How much work has he performed ?(a) 9.8 J(b) 9.8 x 30 J(c) 9.8 x 31 J(d) zero​

Answer»

are truck that a STOP on the road has to be PUSHED hard to GET into MOTION when the truck is moving a little it can be moved faster with a smaller less push why



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