শক্তির নিত্যতা
;A heavy steel ball of mass greater than 1 kg moving with a speed of 2m/ s collides head on with a stationary ping pong ball of mass less than 0.1 g. The collision is elastic. After the collision the ping pong ball moves approximately with a speed
Since the body is much heavy these won't be much change in velocity
&
i.e.,
Ai এর মাধ্যমে
১০ লক্ষ+ প্রশ্ন ডাটাবেজ
প্র্যাকটিস এর মাধ্যমে নিজেকে তৈরি করে ফেলো
উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
সারা দেশের শিক্ষার্থীদের মধ্যে নিজের অবস্থান যাচাই
A ball moving with a velocity v strikes a wall moving toward the ball with a velocity u. An elastic impact lasts for t sec. Then the mean elastic force acting on the ball is ;
A heavy ball moving with speed collides with a tiny ball. The collision is elastic, then immediately after the impact, the second ball will move with a speed approximately equal to-
A 50 gm ball collides with another ball of mass 150gm, moving in its direction of motion, After collision the two ;balls move at a an angle with their initial direction. Ratio of their velocities after collision is
A particle of mass , travelling at speed , strikes a stationary particle of mass . As a result, the particle of mass is deflected through and has a final speed of . Then the speed of the particle of mass after this collision is
