Answer:
the first one is D
Explanation:
so if the others u put are right the the second would be c
Lower the resistance to sliding.
Friction always acts opposite to the motion.<em> (B)</em>
We cannot answer the question if we do not have the answers - sorry!!
Answer:
here given is a weight
then force becomes mg
that is F=Mg
=4*9.8
then by using the formula
F=Ma
a=F/M
=4*9.8/9.8
=4
Explanation: