Question

Tie a string around a wooden bolck/board. Pull the block by a spring balance .

Note down the reading on the spring balance, when the blocks just begins to move . It gives a measure of the force of friction between the surface of the block and the floor.

Now, Keep a book on the block. Again pull the block by the spring balance. Note down the reading. Do we observe any difference in the reading of the spring balance in the above two cases?

When a body moves over a horizontal surface, it presses down against the surface by a force equal to its weight. The force of friction increases with increase in the weight of the body. Hence, in the second case, reading on the spring balance would be more

Please explain this activity mujhe samajh nhi aa rha chapter friction h class 8 please samjha do ye ​

Answer 1

Answer:

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