Question

by which magnitude of force 1 kg ball hit earth surface from 1 km

please help​

Answer 1

force = mass × Acceleration

Force = 1kg × 9.8 ms^2 = 9.8 Newton

( here I took 9.8 ms^2 as Acceleration cuz the ball is falling down from upward that is here ..ball is falling due to gravity of earth ...and this phenomenon is called free fall ....so the value of acceleration of due to gravity is 9.8 ms^2 )