Recent content by GingerKhan

Let's say that an athletic person of average height (1.75 m) and weight (75 kg) is strapped by the feet to a small motorized board. How would one go about calculating the maximum acceleration the person can sustain without falling backwards? There is no wind and the air density is at sea level.

Electric potential energy?

Would it be kinetic energy?

Two frictionless pucks are placed on a level surface at an initial distance of 20.0 m. The mass of puck 1 is 0.80 kg and it has a charge of +3.0 X 10^-4 C., while puck 2 is 0.40 kg with a charge of +3.0 X 10^-4 C. the initial velocity of puck 1 is 12.0 m/s (E) and the initial velocity of puck 2...

Where did the 50 for the v value come from?

What if we reduce the height to 10m?

How many Gs can the average spine of a fit and physically active person sustain?

Thanks!

Does it mean 30 degrees north of west, or 30 degrees west of north?

Oh, I forgot about the spring becoming harder to compress as it is being compressed. So with a graph that illustrates the scenario, I would need to find the area of the right triangle and divide the whole thing by two, giving me 1.62 J I could also use Ee = 1/2 k x^2 to calculate the work done...

It would probably require some sort of leg attachment to relieve the stress on the knees and ankles. Is it within the realm of possibility?

Homework Statement A spring with a force constant of 225 N/m is resting on a friction-less surface and mounted against a wall horizontally. A 1.5 kg box is pushed against the spring and compresses it 12 cm (0.12m) from equilibrium. When released the spring pushes the box across the...