Newton's laws, friction and circular dynamics.
Test yourself on Laws of Motion
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Q1 · Laws of Motion · HARD
Two stars of masses M and 2M are separated by a distance d. The position of their center of mass from the star of mass M is:
Q2 · Laws of Motion · MEDIUM
A rocket of mass 1000 kg ejects gas at a rate of 10 kg/s with an exhaust velocity of 3000 m/s. The thrust produced is:
Q3 · Laws of Motion · EASY
A spacecraft in deep space fires its thruster. According to Newton's third law, the force on the spacecraft is:
Q4 · Laws of Motion · MEDIUM
A spacecraft of mass 800 kg fires its thrusters producing a net force of 3200 N for 5 seconds. If it was initially at rest, what velocity does it achieve?
Q5 · Laws of Motion · EASY
A rocket in deep space ejects 150 kg of gas per second at a relative velocity of 2000 m/s. What is the thrust force experienced by the rocket?