Class 7 (Science Assignment)

 Solve the following numerical problems on force and motion:

1.     A boy pushes a box with a force of 20 N. What is the force applied?

2.     Two forces of 10 N and 15 N act on an object in the same direction. Find the net force.

3.     Two forces of 30 N and 10 N act on an object in opposite directions. Find the resultant force.

4.     A car travels 120 m in 10 s. Find its speed.

5.     A cyclist covers 600 m in 2 minutes. Find the speed in m/s.

6.     A ball moves at a speed of 5 m/s for 8 s. Find the distance covered.

7.     An object starts from rest and moves with a speed of 10 m/s. What is the change in speed?

8.     A force of 25 N acts on a body. If another 5 N force opposes it, find the net force.

9.     A toy car moves 50 m in 5 s. Calculate its speed.

10.  A person pushes a cart with 40 N force and pulls it back with 15 N force. Find the resultant force.