Two similar wooden blocks are tied one behind the other and pulled across a level surface. Friction is not negligible. The force required to pull them at constant speed is F .If one block is stacked upon the other then the new force required to pull them at constant speed will be approximately
Two similar wooden blocks are tied one behind the other and pulled across a level surface. Friction is not negligible. The force required to pull them at constant speed is F .If one block is stacked upon the other then the new force required to pull them at constant speed will be approximately
Urooj , 6 Years ago
Grade 12th pass
When the blocks stack upon each other, the force of friction experienced by the block is:
The kinetic force of friction is also given as:
– T = 0,k in equation F – ƒkSubstitute T = ƒk = 0T = ƒkThe net force on block 2 is written as:T – ƒ
is the force of kinetic friction between block and the surface, and T is the tension in the string.The free body diagram of block 2 is:k – T = 0Here, ƒkThe blocks move with constant speed, therefore the net force acting on the blocks must be zero. to account for same, substitute the net force on each block with zero as:F – ƒ
he free body diagram for block 1 (tied to block 2 via string) is.
