A 10 N constant force acts for 3 s. What impulse does it deliver?
A) 30 N·s B) 3 N·s C) 10 N·s D) 13 N·s Answer: A Explanation: Impulse is force times time […]
Forces & Laws of Motion, Physics
Forces & Laws of Motion
Forces & Laws of Motion, Physics
A 10 N force acts on a 2 kg object. What is its acceleration?
A) 2 m/s² B) 8 m/s² C) 5 m/s² D) 20 m/s² Answer: C Explanation: Acceleration is net force divided […]
Forces & Laws of Motion, Physics
A 2 kg object accelerates at 3 m/s². What net force acts on it?
A) 1.5 N B) 6 N C) 5 N D) 9 N Answer: B Explanation: Newton’s second law is F […]
Forces & Laws of Motion, Physics
A 2 kg object moves at 5 m/s. What is its momentum magnitude?
A) 5 kg·m/s B) 10 kg·m/s C) 15 kg·m/s D) 20 kg·m/s Answer: B Explanation: Use momentum = mass × […]
Forces & Laws of Motion, Physics
A 3 kg object accelerates at 4 m/s². What net force acts on it?
A) 12 N B) 6 N C) 18 N D) 24 N Answer: A Explanation: Use Newton's second law F […]
Forces & Laws of Motion, Physics
A 3 kg object moves at 6 m/s. What is its momentum magnitude?
A) 18 kg·m/s B) 9 kg·m/s C) 27 kg·m/s D) 36 kg·m/s Answer: A Explanation: Use momentum = mass × […]
Forces & Laws of Motion, Physics
A 4 kg object accelerates at 5 m/s². What net force acts on it?
A) 10 N B) 30 N C) 40 N D) 20 N Answer: D Explanation: Use Newton's second law F […]
Forces & Laws of Motion, Physics
A 4 kg object moves at 7 m/s. What is its momentum magnitude?
A) 14 kg·m/s B) 42 kg·m/s C) 56 kg·m/s D) 28 kg·m/s Answer: D Explanation: Use momentum = mass × […]
Forces & Laws of Motion, Physics
A 5 kg object accelerates at 6 m/s². What net force acts on it?
A) 15 N B) 45 N C) 30 N D) 60 N Answer: C Explanation: Use Newton's second law F […]
Forces & Laws of Motion, Physics
A 5 kg object moves at 8 m/s. What is its momentum magnitude?
A) 20 kg·m/s B) 60 kg·m/s C) 40 kg·m/s D) 80 kg·m/s Answer: C Explanation: Use momentum = mass × […]