A ball is kicked on Earth from a location<9,0,-5> (on the ground) with initial velocity role="math" localid="1656668041027" <-10,13,-5>m/s . Neglecting air resistance: (a) What is the velocity of the ball 0.6 s after being kicked? (b) What is the location of the ball 0.6 s after being kicked? (c) What is the maximum height reached by the ball?

Short Answer

Expert verified

a) The velocity of the balls after the time of 0.6 s is -10,7,12,-5m/s.

b) The location of the balls after the time of 0.6 s is role="math" localid="1656668244576" 3,6.06,-8m.

c) The value of maximum height. of the ball is 8.622m.

Step by step solution

01

Identification of the given data

The given data can be listed below as:

  • The location of the point from where the ball has been kicked is 9,0,-5m
  • The initial velocity of the ball when it was kicked is -10,13,-5m
02

Explanation of the velocity and first and third equation of motion

The velocity of the car has two crucial factors that are magnitude and direction, and hence it is the vector quantity. The time and displacement are the dependent factors of the velocity.

The relation of the final and initial velocity of an object with the time used to obtain the value of acceleration is explained by the first equation of motion. It is expressed as follows:

v=u+at

Here, v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time taken.

In the effect of uniform acceleration and knowing the value of initial velocity and distance traveled by a specific item, the final velocity can be determined using the thirst equation of motion. It is expressed as follows:

v2=u2+2as

Here, s is the distance.

03

Determination of the velocity of the balls after the time of 0.6 s

(a)

Write the expression for the velocity of the ball in the y-direction as the motion is vertical.

Take the y component from the coordinate point of velocity and use the first equation of motion.

v=13-9.8×0.6=7.12m/s

Thus, the velocity of the balls after the time of 0.6 s is -10,7,12,-5m/s.

04

Determination of the location of the balls after the time of 0.6 s

(b)

Determine the average velocity of the ball by finding the average of the y-component in the coordinate point of the velocity.

vavg=-10,13+7.122,-5m/s=-10,10.06,-5m/s

Determine the distance by multiplying the time in the coordinate point of the velocity.

d'=10×0.6,10.06×0.6,5×0.6=6,6.036,3m

Determine the location of the ball by adding the above distance in the coordinate point of location.

d=9-6,0+6.036,-5-3=3,6.036,-8m

Thus, the location of the balls after the time of 0.6 s is 3,6.036,-8m.

05

Determination of the maximum height attained by the ball

(c)

It is known that at the maximum height, the ball's final velocity will be zero. So, use the third equation of motion and determine the value of maximum height.

0=u2+2as

Here, a is the acceleration which is equal to the acceleration due to gravity in the upward direction, that is, -g=-9.8m/s2.

Substitute all the values in the above expression.

0=u2+2-gsu2=2gss=u22g=13m/s229.8m/s2=8.622m

Thus, the value of the maximum height of the ball is 8.622m.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

A spacecraft traveling at a velocity of <-20,-90,40>m/sis observed to be at a location <200,300,-500>relative to an origin located on a nearby asteroid. At a later time the spacecraft is at location <-380,-2310,660>m.

(a)How long did it take the spacecraft to travel between these locations?

(b)How far did the spacecraft travel?

(c)What is the speed of the spacecraft?

(d)What is the unit vector in the direction of the spacecraft’s velocity?

(a) In figure 1.58, what are the components of the vector d?

A proton has mass1.7×10-27kg. What is the magnitude of the impulse required to increase its speed from 0.990c to 0.994c?

The driver of a car traveling at a speed of 18 m/s slams on the brakes and comes to a stop in 4s . If we assume that the car's speed changed at a constant rate (constant net force): (a) what was the car's average speed during this 4 s interval? (b) How far did the car go in this 4 s interval?

Question: The following questions refer to the circuit shown in Figure 18.114, consisting of two flashlight batteries and two Nichrome wires of different lengths and different thicknesses as shown (corresponding roughly to your own thick and thin Nichrome wires).

The thin wire is 50 cm long, and its diameter is 0.25 mm. The thick wire is 15 cm long, and its diameter is 0.35 mm. (a) The emf of each flashlight battery is 1.5 V. Determine the steady-state electric field inside each Nichrome wire. Remember that in the steady state you must satisfy both the current node rule and energy conservation. These two principles give you two equations for the two unknown fields. (b) The electron mobility

in room-temperature Nichrome is about 7×10-5(ms)(Ns). Show that it takes an electron 36 min to drift through the two Nichrome wires from location B to location A. (c) On the other hand, about how long did it take to establish the steady state when the circuit was first assembled? Give a very approximate numerical answer, not a precise one. (d) There are about 9×1028mobile electrons per cubic meter in Nichrome. How many electrons cross the junction between the two wires every second?

See all solutions

Recommended explanations on Physics Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free