Question

2.
do not move the ob)
The following are the names of some of the well-known forces
A. gravitational force
B. muscular force
C. magnetic force
D. frictional force
Out of these, the 'contact forces' are the forces labelled as-
A and B
B and C
B and D
C and D​

Answer 1

Answer:

(a) Force has to be applied to change the direction of a moving object.

(b) When an elephant drags a wooden log over the land, the forces that are applied on the log are muscular force , gravitational force and frictional force.

(c) A ball was set rolling on a large table. If its motion is to be changed, a force will have to be applied on it.

(d) The force of friction always acts against the motion.

Answer 2

Answer:

B and D are the correct force