How does temperature affect the spring constant of a spring? detailed answer pls. : )

other ans provides basics on spring constant n why it is affected by temperature. the actual change is more complicated - in addition to microstructural change, the spring itself expands when heated n contracts when chilled.

it depends on the material in question but in general spring constant decreases as temperature rises. so for the same force, the spring will extend more at higher temp.

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

ok

explanation: