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A block of mass 4 kg rests on a frictionless horizontal surface, what horizontal force is required to accelerate the block at 5 m/s^2 ?
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A block of mass 4 kg rests on a frictionless horizontal surface, what horizontal force is required to accelerate the block at 5 m/s^2 ?

User Chris Frederick
by
4.4k points

1 Answer

3 votes

Answer:

20N

Step-by-step explanation:

Given parameters:

Mass of the block = 4kg

Acceleration = 5m/s²

Unknown:

Horizontal force needed to accelerate the block = ?

Solution:

According to Newton's second law of motion;

Force = mass x acceleration

Now insert the parameters and solve;

Horizontal force = 4 x 5 = 20N

User Jaya Mayu
by
4.9k points
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