Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

- Index
- » Science HQ
- »
**Find F**

Pages: **1**

**tyuighp****Member**- Registered: 2015-12-04
- Posts: 12

Suppose a particle of mass 3kg moves under the influence of a force F newten The velocity of the particle is given by

v =(1-sin 2t)i+(-1+cos 2t)j , v m\s

Find F ,and F is constant or not

Offline

You might like to try differentiating , then using This gives you as a function of . Is it constant or does it vary with ?

**LearnMathsFree: Videos on various topics.New: Integration Problem | Adding FractionsPopular: Continued Fractions | Metric Spaces | Duality**

**Online**

**tyuighp****Member**- Registered: 2015-12-04
- Posts: 12

thank you but if

then

*Last edited by tyuighp (2017-07-04 03:55:42)*

Offline

That tells you that the magnitude of the force is constant, but the force itself is not.

**LearnMathsFree: Videos on various topics.New: Integration Problem | Adding FractionsPopular: Continued Fractions | Metric Spaces | Duality**

**Online**

**tyuighp****Member**- Registered: 2015-12-04
- Posts: 12

Yes I have some turbulence

Is the force constant or variable

Offline

It is variable, because its vector components each depend on .

**LearnMathsFree: Videos on various topics.New: Integration Problem | Adding FractionsPopular: Continued Fractions | Metric Spaces | Duality**

**Online**

Pages: **1**

- Index
- » Science HQ
- »
**Find F**