At a football tryout, a player runs a 40-yard dash in t, = 4.70 seconds. If the reaches his maximum speed at the 14-yard mark L constant acceleration and then maintains that speed for the remainder of the run, determine his acceleration over the first 14 his maximum speed, and the time duration of the acceleration.

At a football tryout, a player runs a 40-yard dash in t, = 4.70 seconds. If the reaches his maximum speed at the 14-yard mark L constant acceleration and then maintains that speed for the remainder of the run, determine his acceleration over the first 14 his maximum speed, and the time duration of the acceleration.

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: 1. The velocity of a car is given by v(f) = 60(1– (0.7)*), where v is measured in m/s and t is…

Q: A sports car travels along a straight road with an acceleration-deceleration described by the graph.…

A: To find: The distance s' the car travels until it stops and construct the v-s diagram. Given: The…

Q: niform ac

Q: The car is travelling along the road with a speed of v = (2s) m/s, where s is in meters. Determine…

A: Given data as per question speed of car (v)= 2s s =10 m The radius of curvature =50 m

Q: The elevator starts from rest and moves upward with a constant acceleration. If the average…

Q: A particle moves along a straight line with an acceleration described by the equation, a = 3t2 + 2t…

Q: Q21 the car start from rest and has a V-t graph as shown below. Construct the S4 graph and find the…

A: The shaded area represents the velocity vs. time plot. The magnitude of the area is the distance…

Q: At a football tryout, a player runs a 40-yard dash in t2 = 5.00 seconds. If the reaches his maximum…

A: Given:-t1=0t2=5 secs=14 yardTotal distance, L=40 yardTo find:-AccelerationMaximum speedTime duration…

Q: 4) The acceleration of a particle is given by: a = -kv where k is a constant and v is the…

A: The acceleration is k is constant, v is instantaneous speed.

Q: The acceleration of a particle is given by a = 3t-27, where a is in meters per second squared and t…

Q: radius of r = 2.9 m. At the instant shown, the ball is moving at a speed of v= 5.7 m/s. Determine…

Q: A car P travels along a straight road with a constant speed v = 56 mi/hr. At the instant when the…

A: Given data:- A constant speed v = 56 mi/hr. The angle θ = 62°, d=109ft . To find:- the rate at…

Q: At a football tryout, a player runs a 40-yard dash in t2 = 4.20 seconds. If the reaches his maximum…

A: Solution:

Q: •12-213. The man pulls the boy up to the tree limb C by walking backward. If he starts from rest…

A: The speed of the boy.Given:The acceleration of the man is .The length of the rope is .The final…

Q: A sprinter practicing for the 200-m dash accelerates uniformly from rest at A and reaches a top…

Q: A thin-walled pipe, a uniform cylinder, a uniform sphere, and a bowling ball are all lined up on a…

A: NOTE:- as per honor code and answering guidelines I can answer 1st three subparts at a time.If you…

Q: Determine the time(s) when the acceleration of the vehicle becomes 20m/s^2. The car starts from rest…

Q: An athlete reaches point A in 2.8 sec with his maximum speed from starting point with constant…

A: Assuming the velocity at athlete at point O to be zero. To obtain the required velocities at points…

Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to…

Q: The elevator starts from rest and moves upward with a constant acceleration. If the average…

Q: At a football tryout, a player runs a 40-yard dash in t2 = 4.90 seconds. If the reaches his maximum…

A: The player accelerated for first 17 yards with constant acceleration starting from restthen for next…

Q: The rod OA rotates in the horizontal plane such that e = 0.381 radian, and collar B is sliding…

A: Given: theta = 0.38t3 rad r = 20t2 r = 85 mm

Q: A particle travels along a straight line with a velocity v = (12 – 3t² ) m/s, where t is in seconds.…

Q: As a car accelerates uniformly it passes successive kilometer marks while traveling at velocities of…

Q: H. W: A motorcyclist starting from rest travels along a straight road and for los has the v-t an…

Q: The velocity of the particle is given by v=60(1-e^ t )m/s, where t is in seconds. Determine the a)…

Q: Q2. A car moves at 30 m/s as shown. The radius of the curve is 40 m. Upon entering the curve, the…

Q: At a football tryout, a player runs a 40-yard dash in t₂ = 4.60 seconds. If the reaches his maximum…

Q: A motorcyclist at A is traveling at 60 ft/s when he wishes to pass the truck T which is traveling at…

A: Let t1 represent the time to full speed t2 represents the time to reach the required distance Lets…

Q: A ball is thrown so that the motion is defined by the equations x = 4+ and y = 4+5+-4.82+² where x…

Q: A 1460 lb car starts from rest at point 1 and moves without friction down the track shown. Determine…

Q: 6. A motorcyclist at A is traveling at 60 fl/s when he wishes to pass the truck T which is traveling…

A: Given: Initial speed of the motorcyclist is 60 ft/s. Constant speed of the truck is 60 ft/s.…

Q: A ski jumper starts with a horizontal take-off velocity of 20 m/s and lands on a straight landing…

A: Given Velocity, v = 20 m/s Angle = 30o Find Length, d

Q: The race car has an initial speed vA = 15 m/s at A. If it increases its speed along the circular…

Q: pls need really really fast

A: Figure is shown below

Q: Two runners decided to make an experiment in a 400 meters straight / linear race track. Runner A to…

Q: At a football tryout, a player runs a 40-yard dash in t2 = 4.15 seconds. If the reaches his maximum…

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

100%

At a football tryout, a player runs a 40-yard dash in t, = 4.70 seconds. If the reaches his maximum speed at the 14-yard mark L, with a
constant acceleration and then maintains that speed for the remainder of the run, determine his acceleration over the fırst 14 yards,
his maximum speed, and the time duration of the acceleration.
t = 0
Amswers:
His acceleration:
i
ft/sec2
a =
His maximum speed:
i
ft/sec
The time duration of the acceleration: t=
i
sec

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 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

A sprinter practicing for the 200-m dash accelerates uniformly from rest at A and reaches a top speed of 40 km/h at the 53-m mark. He then maintains this speed for the next 79 meters before uniformly slowing to a final speed of 33 km/h at the finish line. Determine the maximum horizontal acceleration which the sprinter experiences during the run. Where does this maximum acceleration value occur? Finish line 39.9 m A Part 1 Calculate (a) the magnitude of the tangential acceleration near start of the race and (b) the magnitude of the tangential acceleration near the end of the race. Answers: m/s² m/s² (a) latl= (b) latl= i
A particle moves along a straight line with a velocity of = +(6+2) ft/s, where t is in seconds. When the instantaneous acceleration is 26 ft/s², what is the time? Write your answer to three significant figures. The time at an acceleration of 26 ft/s2 is Number
At the given instant, the truck is going around the circular roundabout at a speed of 15 S m acceleration of 17 The angle given, 01, is 65° s² a at A500 P 01 AFI m Values for the figure are given in the following table. Note the figure may not be to scale. Determine the rate at which the truck is increasing it's speed v. m 8² Determine the radius of curvature of the roundabout at that location, p; p= m (more precisely, this is the radius of curvature of the truck's path at that instant) and an
Two jeepneys J1 and J2 are travelling along a straight road next to one another at the same direction, where J2 is ahead of J1. If J2 maintains its constant speed, "y" while J1 begins to decelerate at "a", determine the distance, "s" between the two jeepneys at the instant one of them stops. Assume that the initial speed of J1 is "x".
Please answer the following. If not then answer number 1 only.
Task II Samir tests his new motorcycle by racing with Ahmad. Both start from rest, but Samir leaves the starting line 2.00 s after Ahmad does. Ahmad moves with a constant acceleration of 3.0 m/s2, while Samir maintains an acceleration of 4.0m/s2. Find the time at which Samir overtakes Ahmad, the distance that Samir travels before catching Ahmad, and the velocity of both cars at the instant Samir overtakes Ahmad.
3. As shown in the image below, if the distance d = 9.0 ft, and at this point the speed of the crate A is 14.5 ft/s, which is increasing at a rate of 4.3 ft/s², determine the magnitude of the acceleration (in unit of ft/s2) of the crate at this instant. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. y = 16** d Your Answer: Answer
Construct a-t graph and determine the maximum acceleration of the race car and the total distance covered given v-t graph shown in the figure below. r (m/s) 26 = 4-6 14 T= 3.5t ANS amax m/s2 ST= m (whole number)
QUESTION 11 An air missile falls vertically into the ocean and enters the sea water with velocity 148 m s¯1. Its deceleration a (m-s-2) wthin the water is a function of its velocity v (m-s-1) according to the expression a=-5v Determine the sea depth at which the velocity of the missile becomes zero by assuming straight vertical motion. Provide only the numerical value (in metres) to zero decimal places and do not include the units in the answer box.
2/45 A subway train travels between two of its station stops with the acceleration schedule shown. Deter- mine the time interval At during which the train brakes to a stop with a deceleration of 2 m/s² and find the distances between stations. a, m/s² 2 1 0 -2 Ans. At = 10 s, s 416 m = 86 10 Problem 2/45 At t, s
9) A particle moves in a straight line in such a way that s=2t feet where t is in seconds. Is the acceleration zero, or has it constant or varying acceleration.
The acceleration due to gravity at an altitude y above the surface of the earth can be expressed as where a and y are expressed in ft/s2 and feet, respectively. Using this expression, compute the height reached by a projectile fired vertically upward from the surface of the earth if its initial velocity is (a) 1800 ft/s, (b) 3000 ft/s, (c) 36,700 ft/s.