Question

Please identify and explain the correct answer?

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is static friction. kinetic friction. a combination of static and kinetic friction. neither static nor kinetic friction, but some other type of friction It is impossible to tell what type of friction acts in this situation. Consider a particle moving with constant speed such that its acceleration of constant magnitude is always perpendicular to its velocity It is moving in a straight tine It is moving in a circle It is moving in a parabola. It is moving in a hyperbola. None of the above is definitely true all of the time.

Answer 1

for question 3

option 1) static friction is correct. Because in rolling the point of cotact with respect ground is at rest

for question 4

option 2) in a circle is correct. Because centripetal acceleration always perpendicular to its velocity