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Robert is jamming out on the air guitar and leaps a meter into the air on a hot riff. How long does it take before he lands?
Thank you.
Thank you.
Robert leaps a meter into the air, how long before he lands?
AI Thread Summary
To determine how long it takes Robert to land after leaping a meter into the air, the formula for free fall can be applied, considering the acceleration due to gravity is 9.8 m/s². The time of flight can be calculated using the equation for vertical motion, which involves the initial velocity and the height of the jump. Assuming he jumps straight up with an initial velocity of zero, the time to reach the peak can be calculated, and the total time to land will be twice that duration. The calculated time for Robert to land after jumping one meter is approximately 0.45 seconds. This analysis highlights the physics of free fall in a simple jump scenario.
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19.
For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Let's declare that for the cylinder,
mass = M = 10 kg
Radius = R = 4 m
For the wall and the floor,
Friction coeff = ##\mu## = 0.5
For the hanging mass,
mass = m = 11 kg
First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on.
Force on the hanging mass
$$mg - T = ma$$
Force(Cylinder) on y
$$N_f + f_w - Mg = 0$$
Force(Cylinder) on x
$$T + f_f - N_w = Ma$$
There's also...
This problem is two parts. The first is to determine what effects are being provided by each of the elements - 1) the window panes; 2) the asphalt surface. My answer to that is
The second part of the problem is exactly why you get this affect.
And one more spoiler:
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