Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Laws of Motion

Question:

Three forces $\vec{PQ}$, $\vec{QR}$ and $\vec{RP}$ acts on a body simultaneously. Velocity of the body will 

Options:

Remain Constant 

Increase

Decrease

Change according to smallest force $\vec{QR}$

Correct Answer:

Remain Constant 

Explanation:

From the given diagram, the forces are forming closed loop in same order.

∴ $\vec{F_{net}}$ = 0

⇒ m$\frac{\vec{dv}}{dt}$ = 0

⇒ $\vec{v}$ = constant.