Examlex
A car travels in a flat circle of radius R. At a certain instant the velocity of the car is 24 m/s west, and the acceleration of the car has components of 2.4 m/s2 east and 1.8 m/s2 south. What is the radius of the circle?
Q3: In recent years, local news has surpassed
Q4: If the polarizing angle for cubic zirconia
Q7: If <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8245/.jpg" alt="If ,
Q28: A stunt pilot weighing 0.70 kN performs
Q38: A 2.0-kg block slides on a rough
Q45: The half-life of <sup>131</sup>I is 8 days.
Q54: A rock attached to a string swings
Q65: A constant force of 15 N in
Q69: A ball is thrown horizontally from the
Q100: Two bodies, A and B, collide as