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April 18, 2014

Homework Help: Physics

Posted by dingestifier on Friday, March 2, 2012 at 10:53am.

A block is sliding down a friction compensated runway .Which of the following statements is/are correct?

1)the speed of the block is increasing
2)the normal reaction acting by the runway on the block is increasing
3)the net force acting on the block is zero

a(1) b(3) c(1)(2) d(2)(3)
why the ans is B and why other (1)(2)statements are wrong?can any on EXPLAIN to me?

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