Answered: 7. A ball attached to a string of…

7. A ball attached to a string of length 0.25 meters is whirled around in a circular path. It experiences a centripetal acceleration of 40 m/s². a. What is the tangential velocity of the ball?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: 3. The ball shown is shot horizontally towards the grey slanted wall, with h =w=1m, at an initial…

Q: Problem 2.46 A peg is constrained to move in a rectilinear guide and is given the following…

Q: The disk shown starts from rest and is given an angular acceleration of a = 2t2, where t is in…

Q: Problem 2.8 An airplane A is performing a loop with constant radius p. When = 120°, the speed of the…

Q: 2. The disc is rotating at the given instant with an angular velocity of 8 rad/s and angular…

Q: As a projectile thrown upward moves in its parabolic path, at what point along its path are the…

A: Option d is correct.

Q: A boy riding a bicycle with a constant speed of 800 m/min around a horizontal circu- lar path of…

A: GivenV=800 m/min=80060=13.333 m/sr=50m

Q: An object is made to travel along a path y = x and an observer sees that it is travelling…

Q: Figure 7 illustrates a rotational bracket system. Originally, the bracket rotates about the shaft O…

Q: A point P starts moving from A along a circular path with radius r. Its motion is described by the…

A: (a) Consider the diagram shown below for the given path of the particle, Here, v is the tangential…

Q: A steel wire connects two trains at rest on the same track. The wire will snap if it is stretched by…

A: In this problem, it is asking about the reason behind snapping of wire due to stretching when an…

Q: (7) A particle of mass 2kg is moving with velocity V= (51+4j-2 k) what is its angular momentum about…

Q: A vector v is given as function of time t by v = ti +tj+tk m/s, where (i, j, k ) are unit vectors…

A: Data given- v = t3 i + t2 j + t k wH/R = t i + t2 j + t3 k

Q: A pulley starting from rest and it rotates 2.5 revolutions in 0.3 sec. The estimated final angular…

A: no. of revolution =2.5 radian in 0.3sec =2.5(2(3.14))=15.7 radian

Q: -A 0.60N bullet with a velocity of 360 m/s strikes a 90N block of wood moving a velocity of 10m/s in…

A: Weight of the bullet w1=0.60 N Velocity of the bullet v1=360 m/s Weight of the block w2=90 N…

Q: v of the disc when it reaches position B

A: Given; As per given figure; The speed v of the disc when it reaches position B ?Where, A circular…

Q: A particle is moving in a circular path with a constant angular acceleration of 3 rads-2, and its…

A: Given Data: Angular acceleration, a=3 rad/s2 Tangential acceleration, at=6 m/s2

Q: A particle moves in a circular path of radius 0.10 m with a constant rotational speed of 5.0 rev/s.…

A: The acceleration of the particle is the product of the square of angular speed and radius of…

Q: A motorcycle starts from rest at t = 0 on a circular track 350 m in radius. The tangential component…

Q: Q3) A circular plate is rotationg with a constant angular velocity o about its axis. On the plate a…

Q: Part (C)- Select the proper answer of the followings: 1. The direction of linear velocity of any…

A: As per bartleby guidelines we are allowed to solve only 1st 3 subparts if multiple subparts are…

Q: From the figure below, point P travels in a circular path with idle point B as the center. Point P,…

Q: 7. A Frisbee spins with a frequency of 15HZ. If the Frisbee has a diameter of 35cm, calculate the…

Q: What is the resultant velocity of a point of x-component V = = t³1, and y-component Vy O 63.1326 O…

Q: A particle of mass m is moving in a gravitational field with the potential energy U = -a/r, where r…

Q: A particular bicycle has wheels that are 66 cm in diameter. The radius of the crank arm is 18 cm. At…

A: Disclaimer from Bartleby: Since you have posted a question with multiple sub-parts, we will solve…

Q: A rigid bar AC revolves about A at constant speed of 1.2 rad/s. The slider moving on the rigid bar…

Q: 1.A ball is thrown so that it just clears a 15 ft fence, 75 ft away. If it left the hand 15 ft above…

A: Given Data The range of the ball is: R=75 ft The angle of the ball is: θ=60° The height above the…

Q: 4. A girl tosses a ball at an initial velocity of A = 8 ft/s at an angle of 0 = 25°. A boy catches…

A: For solution refer below images.

Q: Example 3 A particle moves in a circular path of radius r with speed v. It then increases its speed…

Q: A particle traveling in a circular path of radius 300 m has an instantaneous velocity of 30 m/s and…

Q: Which quantity is always tangent to the curvilinear motion path?

A: Curvilinear motion The motion of the body that travels in a curved path either in 2-dimension or…

Q: A small block first begins to slide over a sphere with radius r, fixed and frictionless without…

Concept explainers

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

7. A ball attached to a string of length 0.25 meters is whirled around in a circular path. It
experiences a centripetal acceleration of 40 m/s².
a. What is the tangential velocity of the ball?
b. How long does the ball take to make one complete revolution?

Expert Solution

Step 1

Given data as per the question

$\begin{array}{l} r = 0.25 m \\ {centripetal acceleration, a}_{c} = 40 m / s^{2} \end{array}$

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

1. A particle moves with a constant angular speed of 3 rad/s around a circular path of radius 2 m. Find the acceleration of the particle.
Jana Novotna of what is now the Czech Republic has the strongest serve among her fellow tennis players. In 1993, she sent the ball flying with a speed of 185 km/h. Suppose a tennis ball moving to the right at this speed hits a moveable target of unknown mass. After the one-dimensional, perfectly elastic collision, the tennis ball bounces to the left with a speed of 80.0 km/h. If the tennis ball's mass is 5.70 x 10 - 2 kg, what is the target's mass? (Hunt: Use the conservation of kinetic energy to solve for the second unknown quantity.)
7. A car can accelerate at 4 m./sec.2. How long will it take to reach 90 km./h. from rest? (ans.: 6.25)
A basketball is bounced on the ground at point A and rebounce with a velocity of magnitude 7.5 ft/s
A bead M slides without friction on a rigid wire (T). This rigid wire rotates around the Z axis of a fixed reference frame with constant angular velocity vector . A rotating reference frame is attached to the rigid wire (T). a) Determine the velocity and acceleration vectors of the bead M with respect to the rotating frame given that its position vector is: where is positive constant.
Even if you get this wrong, i m ready to still take it ... Just approach to this question, vll upvote as well i assure
A bullet spins as the shot is fired from a gun. For this purpose, two helical slots as shown in the figure are cut in the barrel. Projections A and B on the bullet engage in each of the slots. Gun Barrel 0.5 m 1 A B Bullet Helical slots are such that one turn of helix is completed over distance of 0.5 m. If velocity of bullet when it exits the barrel is 20 m/s, its spinning speed in rad/s is_
Please solve question A5.2, Thank You!
A car traveling at 13.7 meters per second crashes into a barrier and stops in 0.280 meters. a. How long does it take the car to stop? Include units in your answer. More information. Hint: This is a constant acceleration problem. b. What force must be exerted on a child of mass 25.8 kilograms to stop him or her in the same time as the car? Include units in your answer. More information. Hint: This is an impulse-momentum theorem problem. c. How many times the weight of the child is this force?
An object has path described by the equation y = If at the point P, x = 16 m, v = 28.8 m/s and at 4· = 8 m/s2, determine: a.) The direction of its velocity, b.) radius of curvature, c.) magnitude and direction of its acceleration at this point (show your illustration)
classical dynamics
A bike moving along a straight road covers 35 m in the 4th second and 40 m in the 5th second. What is its initial velocity and acceleration (if the acceleration is assumed to be uniform)?