# physics

posted by .

Two blocks are pushed along a horizontal frictionless surface by a force of 20 newtons to the right. The force acts on the 3 kg block, which in turn pushes the 2kg block sitting next to it. The force that the 2-kilogram block exerts on the 3-kilogram block is......

• physics -

figure acceleartion first.

a= 20/5= 4m/s^2

So to make the 2kg block accelerate at 4m/s^2...
F=ma, and of course that is the force between the 2,3 blocks

• physics -

8 newtons

## Similar Questions

1. ### college physics

Three blocks of mass 1kg,2kg and 3kg move on a frictionless surface and a horizontal force 46 N acts on the 3kg block.1kg and 2kg blocks are in contact with each other while 1kg and 3kg blocks are connected by a chord. (a) Determine …
2. ### physics

Two cubic blocks are in contact, resting on a frictionless horizontal surface. The block on the left has a mass of mL = 6.70 kg, and the block on the right has a mass of mR = 18.4 kg. A force of magnitude 112 N is applied to the left …
3. ### Physics

Two blocks (on top of one another), each of mass m = 2.4 kg, are pushed along the horizontal surface of a table by a horizontal force of magnitude 6.8 N, directed to the right. The blocks move together to the right at constant velocity. …
4. ### College physics (simple)

Two blocks (one on top of the other), each of mass m = 2.4 kg, are pushed along the horizontal surface of a table by a horizontal force P of magnitude 6.8 N, directed to the right. The blocks move together to the right at constant …
5. ### College physics (simple)

Two blocks (one on top of the other), each of mass m = 2.4 kg, are pushed along the horizontal surface of a table by a horizontal force P of magnitude 6.8 N, directed to the right. The blocks move together to the right at constant …
6. ### Physics

Two cubic blocks are in contact, resting on a frictionless horizontal surface. The block on the left has a mass of mL = 6.70 kg, and the block on the right has a mass of mR = 18.4 kg. A force of magnitude 112 N is applied to the left …
7. ### physical science

A horizontal force of 10 Newtons acts on a 2 kg block on a level surface.The frictional force between the block and the surface is 3 Newtons.What is the magnitude and the direction of the net force acting on the block?
8. ### Physics

Block B has a mass of 4.2 kg and block A has a mass of 2.6 kg. They are in contact and slide over a frictionless horizontal surface. A force of 11 N acts on B.(force applied on block b then block a , they are beside each other) what …
9. ### Physics

The horizontal surface on which the block of mass 5 kg slides is frictionless. The force of 29 N acts on the block in a horizontal direction and the force of 58 N acts on the block at an angle(top Right). What is the magnitude of the …
10. ### Physics

Three blocks of mass 10kg, 20kg, 15kg respectively are being pushed in a row on along a horizontal surface with constant velocity by a force applied to the 10kg block.The coefficient of kinetic friction between each of the blocks and …

More Similar Questions