Practice 10 questions on PHY1321 - Principles of Physics I at uOttawa - University of Ottawa. Free AI-generated quiz on uNotes — track your score, retake anytime.
1A small package is released from a hot air balloon moving upwards. What is the initial acceleration of the package with respect to the ground, immediately after release, considering the balloon's upward acceleration?
2A 2 kg mass is suspended on a string. If this system is at rest, what is the tension in the string?
3A 2 kg mass rests on a flat surface and an applied force of 10 N acts horizontally on it. If the force of static friction is sufficient to prevent motion, what is the magnitude of the friction force?
4A desk is pushed across a horizontal floor by a force F= 160 N directed downwards at an angle of 48° to the horizontal. The desk moves 1.4 m forward at a constant velocity. How much work is done by the force F?
5A particle moves under the influence of a conservative force with a given potential energy diagram. At x=8m, the particle has kinetic energy K=4J. What is the kinetic energy at x=2m?
6A particle's position is given by r = 3ti - 4t²j + 2k. What is the magnitude of the instantaneous acceleration at t = 2s?
7A 1.0 kg body, initially at rest, is acted on by a horizontal force described by a graph. What is its speed when t = 11s?
8Donna whirls a 0.64 kg stone with a string that breaks if the tension exceeds 24 N. If the maximum speed is 3.0 m/s, what is the maximum length of the string?
9A bullet of mass 80g is fired into a 4kg block. After collision, the block-bullet system moves on a rough patch (μk=0.3) for 1.5m before stopping. What was the initial velocity of the bullet before the collision?
10A race car starts from rest on a circular track and increases its speed at a constant rate. Find the angle the total acceleration makes with the radius of the circle when the car completes the first half of the circle.
