Entering his dorm room, a student tosses his book bag to the right and upward at an angle of 45° with the horizontal (Fig. OQ4.2). Air resistance does not affect the bag. The bag moves through point Ⓐ immediately after it leaves the student’s hand, through point Ⓑ at the top of its flight, and through point Ⓒ immediately before it lands on the top bunk bed. (i) Rank the following horizontal and vertical velocity components from the largest to the smallest. (a) υ Ⓐ x (b) υ Ⓐ y (c) υ Ⓑ x (d) υ Ⓑ y (e) υ Ⓒ y . Note that zero is Larger than a negative number. If two quantities are equal, show them as equal in your list. If any quantity is equal to zero, show that fact in your list. (ii) Similarly, rank the following acceleration components. (a) a Ⓐ x (b) a Ⓐ y (c) a Ⓑ x (d) a Ⓑ y (e) a Ⓒ y .
Entering his dorm room, a student tosses his book bag to the right and upward at an angle of 45° with the horizontal (Fig. OQ4.2). Air resistance does not affect the bag. The bag moves through point Ⓐ immediately after it leaves the student’s hand, through point Ⓑ at the top of its flight, and through point Ⓒ immediately before it lands on the top bunk bed. (i) Rank the following horizontal and vertical velocity components from the largest to the smallest. (a) υ Ⓐ x (b) υ Ⓐ y (c) υ Ⓑ x (d) υ Ⓑ y (e) υ Ⓒ y . Note that zero is Larger than a negative number. If two quantities are equal, show them as equal in your list. If any quantity is equal to zero, show that fact in your list. (ii) Similarly, rank the following acceleration components. (a) a Ⓐ x (b) a Ⓐ y (c) a Ⓑ x (d) a Ⓑ y (e) a Ⓒ y .
Solution Summary: The author explains the rank in order of decreasing horizontal and vertical components of velocities. A projectile motion is a two dimensional motion, in which the object launched into the air and experiences free fall.
Entering his dorm room, a student tosses his book bag to the right and upward at an angle of 45° with the horizontal (Fig. OQ4.2). Air resistance does not affect the bag. The bag moves through point Ⓐ immediately after it leaves the student’s hand, through point Ⓑ at the top of its flight, and through point Ⓒ immediately before it lands on the top bunk bed. (i) Rank the following horizontal and vertical velocity components from the largest to the smallest. (a) υⒶx (b) υⒶy (c) υⒷx (d) υⒷy (e) υⒸy. Note that zero is Larger than a negative number. If two quantities are equal, show them as equal in your list. If any quantity is equal to zero, show that fact in your list. (ii) Similarly, rank the following acceleration components. (a) aⒶx (b) aⒶy (c) aⒷx (d) aⒷy (e) aⒸy.
When throwing a ball, your hand releases it at a height of 1.5 m above the ground with velocity 6.8 m/s in direction 57° above the horizontal.
(a) How high above the ground (not your hand) does the ball go?(b) At the highest point, how far is the ball horizontally from the point of release?
Two friends are playing catch. They both are about the same height so the release height of the ball when thrown and the height of the catch are both 1.75 meters above the ground. The friend on the right throws the ball at a speed of 15 m/s at an angle of 33° above the horizontal. Assume you can ignore air resistance for this problem.
(1) What are the horizontal and vertical components of the initial velocity of the ball?
(2) How far away should the second friend stand to catch the ball (at a height of 1.75 m above the ground)? 1: You'll first need to solve for the time the ball is in the air. 2: If you don't know how to solve for time, then pick a value for the time the ball is in the air and perform your remaining calculations using that value for time
An item with beginning speed vo is projected from the edge of the
roof of a structure of height H. The object's initial velocity produces
an angle a0 with the horizontal. Don't think about air resistance.
What is the speed of the item shortly before it hits the ground if a0 =
-90 and the object is thrown straight down?
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.