A web page designer creates an animation in which a dot on a computer screen has 4) position r=[4 cm+(2.5cm/s')t*]î+(5cm/s)tj Find the magnitude and direction of the dot's average velocity between t=0 and a) t=2 s. : b) Find the magnitude and direction of the dot's position at t=0, 13D1 s, and t=2 s.

A web page designer creates an animation in which a dot on a computer screen has 4) position r=[4 cm+(2.5cm/s')t*]î+(5cm/s)tj Find the magnitude and direction of the dot's average velocity between t=0 and a) t=2 s. : b) Find the magnitude and direction of the dot's position at t=0, 13D1 s, and t=2 s.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 2.10CYU: Check Your Understanding Verify that vector v V obtained in Example 2.14 is indeed a unit vector by...

See similar textbooks

Similar questions

A snow-covered ski slope makes an angle of 35.0 with the horizontal. When a ski jumper plummets onto the hill, a parcel of splashed snow is thrown up to a maximum displacement of 1.50 m at 16.0 from the vertical in the uphill direction as shown in Figure P3.16. Find the components of its maximum displacement (a) parallel to the surface and (b) perpendicular to the surface. Figure P3.16
Vector A has x and y components of 8.70 cm and 15.0 cm, respectively; vector B has x and y components of 13.2 cm and 6.60 cm, respectively. If AB+3C=0, what are the components of C?
Check Your Understanding Verify that vector v V obtained in Example 2.14 is indeed a unit vector by computing its magnitude. If the convoy in Example 2.8 was moving across a desert flatland—that is, it the third component of its velocity was zero—what is the unit vector of its direction of motion? Which geographic direction does it represent?
Figure OQ1.13 shows two vectors D1 and D2. Which of the possibilities (a) through (d) is the vector D22D1, or (e) is it none of them? Figure OQ1.13
A surveyor measures the distance across a straight river by the following method: starting directly across from a tree on the opposite bank, he walks x = 1.00 102 m along the riverbank to establish a baseline. Then he sights across to the tree. The angle from his baseline lo the tree is = 35.0 (Fig. P1.53). How wide is the river? Figure P1.53
A web page designer creates an animation in which a dot on a computer screen has 4) position r=[4cm+(2.5cm/s')t]î+(5cm/s)tj Find the magnitude and direction of the dot's average velocity between t-0 and a) t32 s. b) Find the magnitude and direction of the dot's position at t=0, t31 s, and t=2 s.
äbö 20 A girl walk 3m east then 4m south as shown in figure below. What is her net displacement ?? and the angle AY A =3i R VB=4j j 5 angle -53 O 5 angle 53 O 16 angle 45 O 16 angle -45 O 15 angle 15
In a total time of 3.0 minutes, a duck on a pond paddles 31 m [N33oE] and then paddlesanother 57 m [E28oS]. Solve for the displacement graphically (with a ruler andprotractor) and then answer the questions. The scale diagram should have a scale, labeled axes, correct vector length and directions, vectorlabels, appropriate significant digits based on your measuring device and final answer withmagnitude to correct sig figs, with unit and direction. Using the displacement you determined from your graph, what was the duck’s average velocityfor the trip? What total distance did the duck travel? What was the average speed of the duck for the whole trip?
What is the vector B inthe same direction as the vector A (-21, 42, 63) cm, but with a magnitude of 238 cm? ! i i !) cm
The figure shows the path taken by a drunk skunk over level ground, from initial point i to final pointL The angles are 6 - 30.0o: - 51.0 and - 77.0.and the distances are dy - 440 m d - 7.10m and dy - 13.0m What are the ta) magnitude and Ibi angle of the skunk's displacement fromi to Give the ande as a positive (counterdlockwisel or negative (clockwise) angle of magnitude less than 180 measured from the direction la) Number Units (b) Number Units
Vectors A and B are given as:A= 3i+2j+k B= 12j+3i-20ka) Solve for A.Bb) Solve for AxBc) What is A+B?
1つ7 3. An object undergoes motion in 2 dimensions under a constant acceleration of "-2.50 m/s at an angle of 50.0° with respect to the + x direction. It also has an initial velocity of vi = 7.00 m/s at an angle of 10,0° The object begins at the coordinates (0, 0). a) What are the coordinates of the object at t = 7.00 s? Want Cx, y) at t =?4 4tzテメ0チ=XT vse this Con Vxi = \V;l cos v +ハ Ay=lalsin Ga b) What is its total velocity vector of the object as a magnitude and direction at t = 7.00 s? a) Ov= Ton