C. The object is accelerating as the direction of the object is changing
Answer:
Im not sure how to explain it but i need points im sorry
Explanation:
Kinetic friction happens when there is kinetic energy and it is coming into contact with another source. ex: a ball rolling.
Answer:
Because chemical energy is being converted into thermal energy.
Explanation:
Answer:
Pebble A has 1/3 the acceleration as pebble B.
Explanation:
F = m×a
mass of a = 3 × mass of b (m_a = 3 × m_b)
Same starting force, F
m_a = mass of a
m_b = mass of b
a_a = acceleration of a
a_b = acceleration of b
F = m_a × a_a = m_b × a_b
3 × m_b × a_a = m_b × a_b
3 × a_a = a_b
OR
a_a = a_b / 3
