The shelf s hangs from the ceiling by two ropes 1 and 2 a block of cheese b rests on the shelf. What is the correct free body diagram for the shelf s A Ft1 Ft,2 F g, s Fn g, b

B ft1 ft2 gs fn

C t1 ft2 f g b

D f n f g s

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y

inverse v=i*r

nice nice