Question

Starting from rest a car acquired a velocity of 16m/s in 4s.If mass of the cart is 3kg Find Force acting on it.Also find Distance travelled by the car .

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Answer 1

Answer:

Given :

The Ratio of present ages of arti and arjun is 5:3 .

Arti's age is 45 yrs .

To Find :

Present age of Arjun .

Solution :

\longmapsto\tt{Let\:present\:age\:of\:Arti\:be=5x}⟼LetpresentageofArtibe=5x

\longmapsto\tt{Let\:present\:age\:of\:Arjun\:be=3x}⟼LetpresentageofArjunbe=3x

As Given that Age of Arti is 45 . So ,

\longmapsto\tt{5x=45}⟼5x=45

\longmapsto\tt{x=\cancel\dfrac{45}{5}}⟼x=

5

45

\longmapsto\tt\bf{x=9}⟼x=9

Value of x is 9 .

Therefore :

\longmapsto\tt{Present\:age\:of\:Arjun=3(9)}⟼PresentageofArjun=3(9)

\longmapsto\tt\bf{27\:years}