Q1. A 70kg man walks out on a 10kg beam that rests on, but is not attached to, two supports. When beam just starts to tip, what is the force exerted on the beam by the right support?
Q2. In the kitchen of the spaceship the chef sets the oven timer for 1.53 hours to make roast beef. How much time does the roast beef spend in the oven while measured by external observers at rest?