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brilliants [131]
2 years ago
5

A block slides along a frictionless surface and onto a slab with a rough surface. The slab has mass of 4 kg and the block has ma

ss of 2 kg. What is the friction force on the small block at t = 1 second?
Physics
1 answer:
maxonik [38]2 years ago
3 0

Answer: the friction force on the small block at t equals 1 second is 2N

Explanation:

Given the data in the question;

from the slope in the graph provided, we will get the acceleration of the slab

At t = 1 seconds

Slope = acceleration = ( 1 - 0) / ( 2 - 0 ) = 1/2 = 0.5 m/s²

Force = ma = 4 × 0.5 = 2 N

so by Newton's third law

Force on block will be same which is 2N

Therefore the friction force on the small block at t equals 1 second is 2N

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