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# Two Balls of Masses in Ratio 1 : 2 Are Dropped from the Same Height Find the Ratio Between Their Velocities When They Strike the Ground - ICSE Class 10 - Physics

#### Question

Two balls of masses in ratio 1 : 2 are dropped from the same height find

a) the ratio between their velocities when they strike the ground and

b) the ration if the forces acting on them during motion.

#### Solution

a) Initial velocity, u = 0 m/s

Final velocity = v

M_1 : M_2 = 1 : 2

From equation v^2 - u^2 = 2gh

So v = sqrt(2gh)

v_1/v_2 = sqrt(2gh)/sqrt(2gh) = 1/1 = 1 : 1

b) Force = mg

F_1/F_2 = (m_1g)/(m_2g) = 1/2 = 1 : 2

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Solution Two Balls of Masses in Ratio 1 : 2 Are Dropped from the Same Height Find the Ratio Between Their Velocities When They Strike the Ground Concept: Concept of Force.
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