Example 9.2 - Chapter 9 Class 9 - Force and Laws Of Motion (Term 1)
Last updated at March 7, 2023 by Teachoo
Examples from NCERT Book
Last updated at March 7, 2023 by Teachoo
Example 9.2 Which would require a greater force –– accelerating a 2 kg mass at 5 m s–2 or a 4 kg mass at 2 m s−2 ? We know that Force = Mass × Acceleration Finding force in both cases Mass 1 MAssm1 = 2 kg a1 = 5 m/s2 F1 = m1 × a1 = 2 × 5 = 10 N Mass 2 m2 = 4 kg a2 = 2 m/s2 F2 = m2 × a2 = 4 × 2 = 8 N Since F1 > F2 , 2 kg mass would require greater force