A car is being towed at a constant speed on a horizontal road using a horizontal

Question

A car is being towed at a constant speed on a horizontal road using a horizontal chain . The tension in the chain is:
A) greater than the weight of the car
B) has the same magnitude as the weight of the car
C) has the same magnitude as the total force that resists the motion of the car
D) greater than the total force that resists the motion of the car
E) either A or D

Part II
If the tension in the horizontal chain in previous question is doubled, the car will move
A) with a constant speed which is greater than the speed 2V in previous question
B) with an increasing speed for a while and then with a constant speed thereafter
C) with a constant speed which is greater than the speed V but less than 2v in previous question
D) with a constant speed 2v
E) with a continuously inclesing speed

Explanation / Answer

1.C

as there is no acceleration, so net force is 0 and tension only counters the resistive force

2.E

as car gets a resultant force which is constant therefore speed increases continuously

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.