A hockey stick stores 4.2 J of PE when it is bent 3.1 cm. Treating the hockey stick as a spring. What is the spring constant​

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

explanation:

wheres the pic

gravitational energy

electrical energy

kinetic energy

ligh energy