Question

Two boxes of same material start moving on surface one with a velocity 10m/s and another with a velocity V if the ratio of stopping times for the two boxes is 1:3 then the valve of V is
Ans:30m/s

Answer 1

if ratio is one and speed is 10 than 1x10=10
if ratio is 3 and speed is 10 then 3x10=30m/s