Question

A force of 15 N is exerted on an encyclopedia to cause it to accelerate at the rate of 5 m/s2. Determine the mass of the encyclopedia.

Answer 1

Answer:

A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s2. Determine the mass of the encyclopedia. Use Fnet= m × a with Fnet = 15 N and a = 5 m/s2. So 15 N = m × (5 m/s2) And m = 3.0 kg.

Explanation:

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Answer 2

Given,

Magnitude of exerted force = 15N

Acceleration amount = 5 m/s²

To find,

The mass of the encyclopedia.

Solution,

We can simply solve this numerical problem by using the following method.

Here, we have to use the mathematical relationship between mass, force and acceleration. Which is -

Force = Mass × Acceleration

By putting the given values, we get :

15 = Mass × 5

Mass = 15/5 = 3kg

(We have used the SI unit of the mass, because rest of the physical quantities are initially given in SI units as well.)

Hence, the mass of the encyclopedia is 3kg