PhysicsPassion

Search This Blog

Circular Motion Class Notes

on October 04, 2020

Get link
Facebook
X
Pinterest
Email
Other Apps

Click on download button to Download the class Notes.

OR

Click on the below link,

Circular Motion Class Notes

Get link
Facebook
X
Pinterest
Email
Other Apps

Comments

A 65-kg skier speeds down a trail, as shown below. The surface is smooth and inclined at an angle of 22° with the horizontal.Find the direction and magnitude of the net force acting on the skier.

The motion of skier is parallel to the slope therefore the the direction of the net force is also parallel to the slope. There are two forces acting on the skier one is Weight (Mg) in downward direction and another one is Normal force (N) as shown in the diagram. Now lets resolve the weight into two vector along horizontal and on vertical direction as shown in the diagram. As we know that there is no motion of body in vertical direction so we can say that net force along vertical direction is zero. Now net force in horizontal direction is given by

A 2.31-microFarad capacitor that is initially uncharged is connected in series with a 5.58−kΩ resistor and an emf source with ε=72.3 V and negligible internal resistance. The circuit is completed at t = 0. Find (a) Just after the circuit is completed, what is the rate at which electrical energy is being dissipated in the resistor? (b) At what value of t is the rate at which electrical energy is being dissipated in the resistor equal to the rate at which electrical energy is being stored in the capacitor?

Given :- and (1) Initially capacitor is uncharged means there is no charge on capacitor i.e q(t=0)=0. we know the relation i.e q = CV since initially charge on capacitor is zero therefore potential across the capacitor is also zero hence it acts like a wire with no resistance. it means we are not going to consider capacitor in the circuit at initial stage so there is only emf source and resister in the circuit. the current through this resistor is, the rate at which electrical energy is being dissipated in the resistor is therefore, .........................1 (2) The energy stored in the capacitor is given by the rate at which electrical energ...

सूर्याचा दहा वर्षाचा प्रवास दाखवणारा व्हिडिओ ! A decade of Sun Video Explained in Marathi

Powered by Blogger

Circular Motion Class Notes

Comments

Post a Comment