Answer:
a)
b)
Explanation:
Given:
length of inclined roof,
inclination of roof below horizontal,
acceleration of hammer on the roof,
height from the lower edge of the roof,
<u>Now, we find the final velocity when leaving the edge of the roof:</u>
Using the equation of motion:
The direction of this velocity is 17° below the horizontal.
∴Vertical component of velocity:
a.
<em><u>So, the time taken to fall on the ground:</u></em>
here:
initial velocity,
putting respective values
b.
Horizontal component of velocity,
Since there is no air resistance so the horizontal velocity component remains constant.
<em><u>∴Horizontal distance from the edge of the roof where the hammer falls is given by:</u></em>