Grade 11Mechanics

When two bodies move towards each other with constant speed, the distance between them decreases at the rate of 9m/s. If they move in the same direction with the same speed, the distance between them incerases at the rate of 4m/s. Find their speed?

Arathy.A

9 Years agoGrade 11

1 Answer

Hamza

9 Years ago

Let the speed of faster doby be x Let the speed of slower body be yIn the first case their relative speed isx+y=9m/sin the second case their relative speed is x-y=4m/sin solving we get that value of x=6.5and that of y is 2.5

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When two bodies move towards each other with constant speed, the distance between them decreases at the rate of 9m/s. If they move in the same direction with the same speed, the distance between them incerases at the rate of 4m/s. Find their speed?

Arathy.A

1 Answer

Hamza

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A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.11213141

If a=x² find the displacement at t =3sec if body velocity at t= 0 sec is 0

A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.

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