(b) In projectile motion, the acceleration at the highest point of the motion is
ID: 2290322 • Letter: #
Question
(b) In projectile motion, the acceleration at the highest point of the motion is not zero. TRUE FALSE
(c) Since the speed in uniform circular motion is constant, the acceleration is zero. TRUE FALSE
(d) If a person exerts a force on an object, that object exerts an equal-opposite force on the person. TRUE FALSE
(e) The normal force on an object is always equal-opposite to its weight force. TRUE FALSE
(f) The static friction force on an object acts in the same direction as the normal force on that object. TRUE FALSE
Explanation / Answer
(b) In projectile motion, the acceleration at the highest point of the motion is not zero. TRUE
acceleration is constant throughtout and acts downward with g
(c) Since the speed in uniform circular motion is constant, the acceleration is zero. FALSE
it velocity changes due to change in direction in circular motion. hence acceleration is there
(d) If a person exerts a force on an object, that object exerts an equal-opposite force on the person. TRUE
this is true by newton's third law
(e) The normal force on an object is always equal-opposite to its weight force. FALSE
this is not true if force acts on object in inclined direction
(f) The static friction force on an object acts in the same direction as the normal force on that object. FALSE
They are perpendicular to each other not same direction
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.