Grade 12Mechanics

A ball is thrown horizontally with a velocity of 9.8m/s from a tower 49m high.its velocity after one sec is a)9.8 b)9.8√2 c)19.6 d)28.4

Geetha

8 Years agoGrade 12

1 Answer

Adarsh

Approved Tutor Answer8 Years ago

We can calculate it by finding horizontal and vertical component of velocity after 1 second.Both horizontal and vertical component of velocity after 1 second is 9.8 Therefore resultant velocity is equal to 9.8√2.Hence (b) is the correct option.

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A ball is thrown horizontally with a velocity of 9.8m/s from a tower 49m high.its velocity after one sec is a)9.8 b)9.8√2 c)19.6 d)28.4

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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