Grade 12th passMechanics

A boy throws a stone horizontally off a cliff.it hits the sea 2 second later at a distance of 40m from the foot of the cliff calculate the height of the cliff

Adnanullah

5 Years agoGrade 12th pass

1 Answer

REEM HAZAKAT

5 Years ago

Height = 0.5 g t*t= 0.5*10*2*2= 20Initial speed = horizontal dist/ time= 40/ 2 = 20 m/s scalar quantityDirection of stone is in the direction of initial speed if no obstacle is present

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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.

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A boy throws a stone horizontally off a cliff.it hits the sea 2 second later at a distance of 40m from the foot of the cliff calculate the height of the cliff

Adnanullah

1 Answer

REEM HAZAKAT

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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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