Consider a system on which there are external forces acting. If the vector sum of all these external forces is zero, then the centre of mass _____
A. must not move
B. may move
C. may accelerate
D. must accelerate
Answer:B
Consider a system on which there are external forces acting. If the vector sum of all these external forces is zero, then the centre of mass _____
A. must not move B. may move C. may accelerate D. must accelerate