Grade 11Mechanics

A particle of mass M is projected with speed v m/s at an angle 30° with horizontal from ground . Its K.E at the topmost point of the trajectory is?

Tanisha

8 Years agoGrade 11

1 Answer

Yashwant yadav

8 Years ago

Breaking components in projectile....vcos30 for horizontal which is still be there at the topmost point,Now k.e is 1/2mv² where v is vcos 30 ,so by calculating 1/2m *(v√3/2)²= 3/8mv² answer:

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A particle of mass M is projected with speed v m/s at an angle 30° with horizontal from ground . Its K.E at the topmost point of the trajectory is?

Tanisha

1 Answer

Yashwant yadav

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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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