A car -open the top- of mass 9-75 kg is coasting along a level track 1-36 m-s- when it begins to rain hard- The raindrops fall vertically with respect to the ground- When it has collected 0-5 kg of rain- the speed of the car is

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Toppr Admin · Accepted Answer

Initial m1-9-75 kgfinal m-9-75-0-5-10-25m1v1-m2v2-9-75-1-36-10-25-v2v2-1-29 m-s

A car (open at the top) of mass 9.75 kg is coasting along a level track at 1.36 m/s, when it begins to rain hard. The raindrops fall vertically with respect to the ground. When it has collected 0.5 kg of rain, the speed of the car is

Initial $m_{1} = 9.75$ kg
final $m = 9.75 + 0.5 = 10.25$
$m_{1} v_{1} = m_{2} v_{2}$
$(9.75) (1.36) = (10.25) v_{2}$
$v_{2} = 1.29$ m/s

A car (open at the top) of mass 9.75 kg is coasting along a level track at 1.36 m/s, when it begins to rain hard. The raindrops fall vertically with respect to the ground. When it has collected 0.5 kg of rain, the speed of the car is

Initial m1=9.75 kgfinal m=9.75+0.5=10.25m1v1=m2v2(9.75)(1.36)=(10.25)v2v2=1.29 m/s

Initial $m_{1} = 9.75$ kg
final $m = 9.75 + 0.5 = 10.25$
$m_{1} v_{1} = m_{2} v_{2}$
$(9.75) (1.36) = (10.25) v_{2}$
$v_{2} = 1.29$ m/s