P8

Question 1

Newton first law of motion

Answer 1

If force on object is balanced, resulant force is zero
If object is reat, it stay sttionery
If object move, move in same speed and direction

Question 2

Newton third law of motion

Answer 2

When two object interact, they exert equal and opposite force

Question 3

Scalar

Answer 3

Physical quantity with magnitude

Question 4

Vector

Answer 4

Physical quantity with magnitude and direction

Question 5

Resultant force

Answer 5

Single force have same effect as all force act on object

Question 6

Centre of mass

Answer 6

Point of object whehe mass can be concentrate