I hope it's not too late, but here you go
A=F/m
a=(3000000)/(20000)
a=15 m/s^2
Answer:
9 Brainly hahaha ............huh
Answer:
Explanation:
Given
mas of car=870 kg
coffee mug mass=0.47 kg
coefficient of static friction between mug and roof 
Coefficient of kinetic Friction 
maximum car acceleration is 
here coefficient of static friction comes in to action because mug is placed over car . If mug is moving relative to car then \mu _k is come into effect
