A 10-kg block is pushed across a friction-free horizontal surface with a horizontal force of 20 N.The acceleration of the block is A)1 m/s². B)2 m/s². C)5 m/s². D)10 m/s². E)none of the above

Question

Quizplus · Accepted Answer

The force applied on the block is 20 N, and the mass of the block is 10 kg. 
We can use the formula: F = ma
where F is the force applied, m is the mass of the object, and a is the acceleration produced by the force.

So, a = F/m = 20 N / 10 kg = 2 m/s²

Therefore, the acceleration of the block is 2 m/s². The correct choice is B.

A 10-Kg Block Is Pushed Across a Friction-Free Horizontal Surface