Long answer question: (any three 1) A bus starts to move from rest and gains a velocity of 30 m/s in
10 second. Calculate its acceleration​

Answer: buoyancy forceexplanation: in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.

Yes

Ithink it is letter b, i may be wrong but i think that is the answer