Question

09) Two objects OF Mass 5kg and 8 kg are at rest. F1 and F2 are the forces applied
both the respectively. if The speed of both the objects 10 m/s and 20m/s then find the value of F1-f2
​

Answer 1

Answer:

Explanation:

First Object:

Mass (m₁) = 5 kg

Initial Velocity (u₁) = 0 m/s

Final velocity (v₂) = 16 m/s

time = 5 s

We know that,

Force = mass * acceleration

And acceleration = (v - u) / t.

Hence,

F₁ = 5 * (16 - 0) / 5

→ F₁ = 5 * 16/5

→ F₁ = 16 N

Second Object:

Mass (m₂) = 8 kg

Initial Velocity (u₂) = 0 m/s

Final Velocity (v₂) = 15 m/s

Time = 5 s

Hence,

F₂ = 8 * (15 - 0) / 5

→ F₂ = 8 * 15/5

→ F₂ = 24 N

Additional Information:

Force:

It is the push or pull of an Object.

It is a vector quantity.

It is denoted by "F".

F = ma, where m is the Mass of the Object and a is it's acceleration.

It's units are Newtons (N) and dynes (dyn).

It depends on mass & acceleration of the object.