Question

   The diagram shows five different moving objects. Which of the objects are moving at a constant speed? (T5:23)

a) Left Arrow 6N, Right Arrow 10N

b) x2 Right Arrows 4N

c) Left Arrow 5N, Right Arrow 2N, Right Arrow 3N

d) Left Arrow 6N, x2 Right Arrow 6N

e) Left Arrow 3N, Left Arrow 8N, Right Arrow 4N, Right Arrow 6N

Answer 1

According to Newton's first law, a body moves at a constant speed when the resultant force is zero. Thus, the correct answer is (c).