Question

A force of 45N acting on
an object and it is a
moving with an acceleration
of 1.5 m/s². Find the mass.
of the object​

Answer 1

Answer:

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Explanation:

F=Ma

F=45N(given)

a=1.5m/s^2

M=F/A

45/1.5=30Kg

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Answer 2

Answer:

• The Mass (m) of the object is 30 Kg.

Given:

1. Force Applied (F) = 45 N.
2. Acceleration (a) = 1.5 m/s²

Explanation:

$\rule{300}{1.5}$

Newton's Second law:

It states that the rate of change of momentum is directly proportional to the External force applied on the system.

Expression:

• F = M a

Units:

• S.I unit = N
• C.G.S Unit = dynes.

$\rule{300}{1.5}$

$\rule{300}{1.5}$

From the formula we know,

⇒ F = M a

Where,

• F Denotes Force.
• M Denotes Mass.
• a Denotes Acceleration.

Now,

⇒ F = M a

Substituting the values,

⇒ 45 N = M × 1.5 m/s²

⇒ 45 = M × 1.5

⇒ M = 45 / 1.5

⇒ M = 450 / 15

⇒ M = 30

⇒ M = 30 Kg.

∴ The Mass (m) of the object is 30 Kg.

$\rule{300}{1.5}$