Question

2.
Two bodies with unequal masses are moving in
straight line and are brought to rest by applying
equal retarding forces. If first moves in twice
the time as second, but goes only one third the
distance covered by other before coming to
rest. The ratio of their initial velocities are
11
1​

Answer 1

Answer:

Let mass of P be m1

and

Mass of Q be m2

Also

Let time taken by Q be t

thus

Time taken by p = 2t

Similarly

Let distance travelled by Q be x

Thus

distance traveled by P = x/3

velocities

VP = x/3/ 2t = x/ 6t

VQ = x/t

Thus

Ratio of velocities = 1:6

Explanation: