7.3

Question 1

Newton’s second law

Answer 1

Net force acting on object is directly proprotional to rate of change of momentum (same direction)

• F = ma

• m[v-u/t]
• (mv-mu) - t
• (p2 - p1)/ t
• 🔺p / 🔺t
• F = 🔺p / 🔺t
• rate of change of momentum is equal to net force