Question

Asked Feb 6, 2019

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A stone is thrown with an initial speed of 15m/s at an angle of 53° above the horizontal from the top of a 35m building. If g=9.8m/s^2 and air resistance is negligable, then what is the speed of the rock as it hits the ground?

Step 1

From this we will get the time flight of the projectile.

Step 2

Here as per the question it is projected from the top of the buliding which is 35 m heigh form the ground, so here i took -ive.

Step 3

Now

From the equation 1 and 2

we got the value of a...

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