Force

 Motion


Learning Outcome

  • Inertia of an object and qualitative concept of force applying Newton's first law of motion.
  • Nature of different types of forces.
  • Influence of balanced and unbalanced forces.
  • Momentum of objects.
  • Influence of force on motion.
  • Measure the force by applying Newton's second law of motion.
  • Action and reaction force by applying Newton's third law of motion.
  • Influence of motion and force on safe travelling.
  • Conservation of law of momentum and collision.
  • Different types of friction and frictional forces.
  • Influence of friction on the motion of an object.
  • Means to increase or decrease friction.
  • Positive impact of friction in our daily life.
  • Gravitational force.

3.1 Inertia and Concept of Force - Newton's First Law

3.2 Nature of Fundamental Forces

3.3 Balanced and Unbalanced Forces

3.4 Momentum

3.5 Collision

3.6 Effect of Force on Motion: Newton's Second Law

3.7 Gravitational Force

3.8 Newton's Third Law

3.9 Frictional Force


Necessary Equations



No. Information Unit
 1 
 2
 3

 4  


Mathematical Problems


  • What is the force to be applied to a mass of 50 kg to produce an acceleration of 4 ms-2? [Ans: 200 N]

  • A boy pushes a box of mass 20 kg with a force of 50 N. What will be the acceleration of the box? [Ans: 2.5 ms-2]

  • A force of 2000 N acts on a body of mass 20 kg for a time of 0.1 s. What is the change of momentum of the body? [Ans: 200 kgms-1]

  • A bullet of mass 10 g was shot from a gun with a velocity of 500 ms-1. If the mass of the gun is 2 kg, find the backward velocity of the gun. [Ans: 2.5 ms-1]




Comments

About Me





Md. Saifur Rahman


B.Sc (Honors), M.Sc (Chemistry)

Former Principal of South Point School and College, Dinajpur.

Popular Posts

'দুনিয়া আখিরাতের শস্যক্ষেত্র' - ব্যাখ্যা কর।

স্বাধীনতার পর যুদ্ধবিধস্ত বাংলাদেশ পূণর্গঠন প্রক্রিয়ার বর্ণনা দাও।

কেন্দ্রীয় প্রবণতা (Central tendency) কাকে বলে?

আল্লাহ পাকের ৫টি গুণবাচক নাম অর্থসহ লেখ।

তাওহিদ বিশ্বাস করা প্রয়োজন কেন?

রুট স্টক ও সায়ন বলতে কী বুঝ?

কিভাবে সেচের পানির অপচয় হয়?