1) Well it is basically, force normal, force tension and force gravity. Since centripetal can't be counted as a force, I can't count it in the FBD.
Therefore it would the FBD would have a longer normal force + tension force, and the force of gravity is shorter.
2) Hmm, your right, it...
A 1.0 N pendulum bob is set into motion on a 75 cm long string. At the bottom of the swing the tension is 1.2 N.
a) Deduce that the speed of the bb at the bottom of the swing is 1.2 m s^-2
b) Determine the maximum height the bob will swing assuming no air resistance or friction...
Homework Statement
From what height would a compact car have to be dropped to have the same kinetic energy that it has when being driven at 105 km/h? Unless otherwise directed, assume that air resistance is negligible.
Answer: __ m
Velocity: 105 km/h -> 105000 m/s
Height: ...
THANKYOU, both your equations and formulas got the same answer (of course) but now I understand how it is possible and two ways of solving this type of question.
A physics book of unknown mass is dropped 4.20 m. What speed does the book have just before it hits the ground? Unless otherwise directed, assume that air resistance is negligible.
Height: 4.20
Acceleration: 9.81
Mass: ?
Velocity: ?
The answer box is for velocity: ___ m/s
Homework...
1. I understand I need to find the area underneath the force time graph, however I do not understand how to use the impulse = m(delta)v
2. the question says:
A 0.145 kg ball, moving in the positive direction at 13 m/s, is acted on by the impulse shown in the graph in Figure 9-12 What is...