If a woodchuck could chuck wood?
As much wood as a woodchuck could chuck,
If a woodchuck could chuck wood.
A 0.450 kg ice puck, moving east with a speed of has a head in collision with a 0.900 kg puck, initially at rest. Assuming a perfectly elastic collision what will be the speed and direction of each object after the collision?
A space traveler weights 540 N on earth. what will the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth ?
The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of 4 m/s, what is the largest value that the radius r can have if the car is to remain in contact with the circular track at all times?
An adventurous archaeologist crosses between two rock cliffs by slowly going hand-over-hand along a rope stretched between the cliffs. He stops to rest at the middle of the rope (Fig. 1) The rope will break if the tension in it exceeds N and our hero's mass is 86.5 kg.
Figure 1 a) If the angle is , find the tension iin the rope.
b) What is the smallest value the angle can have if the rope is not to break?