Home
Class 11
PHYSICS
What is the path length of the following...

What is the path length of the following path?
A (0, 0) to B (5, 0) to C (5, 5) to D (0, 5)
a) 20 units
b) 25 units
c) 15 units
d) 10 units

Text Solution

Verified by Experts

The correct Answer is:
B
Given , `m=1kg, H=1m, h=0.8m`
Here work done by friction
`=change in P.E.
`rarr W_1=mgh-mgH `
`=1xx10xx(0.2)=-2J`
Promotional Banner

Similar Questions

Explore conceptually related problems

Find out a and d for each of the following Aps: 2.5 , 1.5, 0.5,-0.5 ......

Which of the following cannot be the probability of an event (a) 2/3 (b) 1.5 (c) 15 % (d) 0.7

Consider a triangulat pyramid ABCD the position vector of whose angular points are A(3, 0, 1), B(-1, 4, 1), C(5, 2, 3) and D(0, -5, 4) . Let G be the point of intersection of the medians of the triangle(BCD) . Q. Area of the triangle(ABC) (in sq. units) is

A loop ABCDEFA of straight edges has a six corner points A(0, 0, 0), B(5, 0, 0), C(5, 5, 0), D(0, 5, 0), E(0, 5, 5), F(0, 0, 5). The magnetic field in this region is vecB=(3hati + 4hatk)T . The quantity of the flux through the loop ABCDEFA (in Wb) is ......

If the area of the triangle with vertices (-2,0) ( 0,4) (0,k) having 4 sq. units then K=

The points A(-2,1) , B ( 0,5) , C ( -1 , 2) are collinear.

A= {5, 10, 15, 20}, B= {2,4,6,8, 10}. Out of the following, which is a function? (a) {(5, 2), (10, 4), (15,6), (20, 9)} (b) {(5, 2), (10, 4)} (c ) {(5, 2), (10, 4), (15,6), (20), 10)} (d) {(5, 1), (5, 10), (15, 6), (20,9)}

The perimeter of a triangle with vertices (0,4), (0,0) and (3,0) is . . . . units.

The area of the quadrilateral ABCD, where A(0, 4, 1), B(2, 3, -1), C(4, 5, 0) and D(2, 6, 2), is equal to ........