Grade 12Mechanics

A body is projected with a velocity 6i+8j+20k i and j being in horizontal plane and k in vertical plane. Horizontal range of the body is a.80 b.34 c.40

Geetha

8 Years agoGrade 12

1 Answer

Adarsh

Approved Tutor Answer8 Years ago

Here time of flight = 2.20/10= 4sNet horizontal velocity = √ (8)^2 +(6)^2 = 10m/s Now, net horizontal displacement = 10 . 4 = 40 m Hence (c) is the correct option

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A body is projected with a velocity 6i+8j+20k i and j being in horizontal plane and k in vertical plane. Horizontal range of the body is a.80 b.34 c.40

Geetha

1 Answer

Adarsh

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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

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