Physics, 20.09.2021 21:20 Nae0523

find by drawing and by calculation the resultant of two vectors 3units and 4units inclined at each other at 30 degree

Answers: 3

Show answers

Answers

Answer from: lexieprochaskaaa

Graphical method

1 ) Draw the two vectors to scale (with lengths of 3 and 4 units) with the correct angle between them.

2) Take a set square and a ruler. Place the set square with one edge (let’s call it “A”) along the first vector (so you can see the other vector). Place the ruler along the edge of the set square that is at right angles to the first vector.

3) Now hold the ruler stationary and slide the set square along the ruler until the edge A meets the very end of the second vector.

4) Draw a line along edge A.

Do you see that this line is parallel to the first vector?

4) Use your ruler to mark the length of the first vector along your new line.

5) now draw a line from the start of the first vector to the end of the second vector.

6) measure the angle from the first vector to this new line with a protractor. Measure the length with a ruler. This is your resultant vector angle.

Pythagoras method (use this for all right angled triangles)

The resultant vector is the hypotenuse of the triangle made from Vector 1 and 2.

We know that the square of the hypotenuse is the sum of the squares of the other two sides.

So 3^2 + 4^2 = resultant squared = 9+16 = 25

so the resultant = sqrt (25) = 5

(you can remember this 3,4,5 length of a rt angled triangle, it comes up quite a lot)

Calculation method to come

Explanation:

Plz follow me and mark brainlist and drop some thanks

Answer from: Quest

i'm just gonna leave this comment here, so i can get a challange done-

explanation:

Answer from: Quest

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

Another question on Physics

Physics, 21.06.2019 16:20

Luke and carrie are driving down a straight section of the interstate at 70 mph in luke's new convertible. carrie is drinking a soda in the passenger seat. when she is done she tosses the bottle straight up in the air, just above the height of the car. what will happen to the bottle if air resistance is neglected? a. the bottle will land in carrie's lap. b. not enough information is given. c. the bottle will land on the interstate in front of the car. d. the bottle will land on the interstate behind the car.

Answers: 1

Answer

Physics, 21.06.2019 21:40

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal.find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

Answers: 3

Answer

Physics, 21.06.2019 23:30

Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?

Answers: 2

Answer

Physics, 22.06.2019 16:00

An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.

Answers: 1

Answer

You know the right answer?

find by drawing and by calculation the resultant of two vectors 3units and 4units inclined at each o...

Questions