Question

A small stone of mass 50 g and volume 10 cm cube held under water is allowed to fail in it. The acceleration of stone in water is?

Answer 1

Answer:

mass-50g, v- 10cm3; a=?

true weight= 50/1000×10=0.5N

upthrust= 10/1000000 ×1000×10

=0.1N

net force= 0.5-0.1= 0.4N

a= f/m= 0.4/50 ×1000=8 m/s2