At the instant a race began, a 65-kg sprinter exerted a force of 720 N on the starting block at a 22o angle with respect to the ground. (a) What was the horizontal acceleration of the sprinter? (b) If the force was exerted for 0.32 s, with what speed did the spinter leave the starting block?

At the instant a race began, a 65-kg sprinter exerted a force of 720 N on the starting block at a 22o angle with respect to the ground. (a) What was the horizontal acceleration of the sprinter? (b) If the force was exerted for 0.32 s, with what speed did the spinter leave the starting block?

Name: At the instant a race began, a 65-kg sprinter exerted a force of 720 N
Uploaded: 2024-03-20T06:57:57.000Z
Channel: Bartleby
Description: At the instant a race began, a 65-kg sprinter exerted a force of 720 N on the starting block at a 22o angle with respect to the ground. (a) What was the horizontal acceleration of the sprinter? (b) If the force was exerted for 0.32 s, with what speed

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter4: Dynamics: Force And Newton's Laws Of Motion

Section: Chapter Questions

Problem 15PE: What net external force is exerted on a 1100-kg artillery shell fired from a battleship if the shell...

See similar textbooks

Related questions

Q: Two masses in an Atwood machine are 2.2 kg and 13.3 kg, the vertical distance of the heavier body…

Q: What horizontal force P can be applied to a 100-kg block in a level surface with coefficient of…

Q: Consider a buisness jet mass of 36000 kg in takeoff when the thrust for each of two engines is 36000…

A: The acceleration of the jet is,

Q: A 65-kg stuntman is trying to cross a busy street, using a rope over the street. At some point on…

A: Given data, mass of stuntman, m = 65 kg angle of the left side of the rope with the vertical, α =…

Q: Abel is pulling a cart, but he's pulling on a handle that causes his force to be applied to the cart…

Q: Two masses in an Atwood machine are 3.3 kg and 14.9 kg, the vertical distance of the heavier body…

Q: The loaded cab of an elevator has a mass of 1.40 × 103 kg and moves 186. m up the shaft in 16.0 s at…

Q: At the instant a race began, a 67-kgkg sprinter exerted a force of 700 NN on the starting block at a…

Q: A 2 lb hammer travelling at a speed of 15 ft/s strikes anail and drives it 0.75 inor inches into a…

A: Since the hammer is moving it possesses kinetic energy which is given as k=0.5×m×v2---(A), So in…

Q: A parachutist is falling at a steady rate of 6 m/s. If the combined mass of the parachutist and the…

A: There are two forces acting on the parachutist, one is the weight in the downward direction and…

Q: the net external force on the 24-kg mower isstated to be 51 N. If the force of friction opposing the…

A: Mower mass, m = 24 kg Net external force on mower, Fnet = 51 N Force of friction, f = 24 N (always…

Q: A 23-kg suitcase is pulled with constant speed by a handle at anangle of 25° above the horizontal.…

Q: The force exerted by the wind on the sails of a sailboat is Fsail = 430 N north. The water exerts a…

A: Given data The magnitude of the force in the north direction is: Fy = Fsail = 430 N The magnitude of…

Q: The diagram shows a body of mass 2 kg resting in a frictionless horizontal gully in which it isu…

A: Given, Body A mass of the body mA=2kg force acted upon a body for time t=5s Horizontal force acting…

Q: Three forces act concurrrently on a body. Force A has a magnitude of 200 N and points 50o N of W;…

A: We have 3 forces given by A=200 N (50o North of West), B=100 N (30o East of North) and C=300 N (40o…

Q: Find the acceleration of the masses where M = 4 Kg and m = 2 Kg, μk = 0.2. find the angle using…

A: Given that, M= 4 kg m= 2kg Coefficient of friction, μk=0.2 tanθ=μk=0.2∴θ=tan-10.2=11.3o

Q: A 5-kg block at rest is pulled by a constant horizontal force of 19.6 N that cause it to accelerate.…

A: Given,mass of the block, m = 5 kghorizontal force appplied on the block, F = 19.6 Ncoefficient of…

Q: When a 30-N force, parallel to the incline and directed up the incline, is applied to a block on a…

Q: A block of mass M is pulled along a horizontal frictionless surface by a rope of mass m, as shown in…

A: Given: mass of the block - M mass of the rope - m Horizontal pulling force- F

Q: ni/h) by the pitcher. If the mass of the ball is 0.15 kg and if the catche noves his mitt backward…

A: The average force is the force exerted by some object moving at some defined rate of speed i.e.…

Q: What is the magnitude of final velocity of a 20.16kg moving tractor maintained by unbalanced force…

A: We know that Acceleration a=F/m= a=F/20.16 Put the value of Force and get Acceleration.

Q: For a block of mass m traveling down the incline as shown: f W What is the magnitude of the normal…

Q: A 970.-kg car starts from rest on a horizontal roadway andaccelerates eastward for 5.00 s when it…

A: Force is,

Q: A 3.00-kg object undergoes an acceleration given by a=(2.00i + 5j) m/s?. Find the resultant force…

A: GivenMass of object (m)=3.00 kgAcceleration of object (a→)=(2.00 i+5 j) m/s2

Q: In the Jurassic Park sequel, The Lost World, a man tries to keep alarge vehicle from going over a…

Q: How much net force is required to accelerate a 1000 kg car at 4.00 m/s²?

Q: In a trial, a dog generated an instantaneous ground reaction force that was 1.7 times the dog’s…

Q: An object with a mass of 2.0 kg accelerates 2.0 m/s? when an unknown force is applied to it. What is…

A: Data Given , Mass of the object ( m ) = 2 kg Acceleration ( a ) = 2 m/s2 We have to find out the…

Q: A bird of mass 2 kg is flying at 10 m s horizontal and vertical components of the Coriolis force…

A: Coriolis force is a velocity dependent force and this is given by F→=-2mω→×v→where ω is the angular…

Q: A cleaner pushes a 4.50-kg laundry cart in such a way thatthe net external force on it is 60.0 N.…

Q: A sprinter (mass of 85 kg) pushes against the blocks with a resultant force of -2500 N at an angle…

A: Given, Mass of sprinter m = 85 Kg Resultant force F = 2500 N Angle θ=15∘

Q: A block is pushed onto a frictionless surface of inclination 30 ° by applying a force as shown in…

A: Given: The mass of the block is 3.0 kg. The angle of inclination is 30°. The force on the block is…

Q: • A 92-kg water skier floating in a lake is pulled from rest to a speedof 12 m>s in a distance of…

Q: A car of mass mpush = 1350 kg is capable of a maximum acceleration of 6.00 m/s?. If this car is…

A: From Newton's law Fmax=mpushamax=1350 kg6.00 ms2=8100 N

Q: Second Law of Newton states that when there is a net force acting on a body, the body would…

A: Given Second Law of Newton states that when there is a net force acting on a body, the body would…

Q: aw, elatively far from the joint, enabling very large forces to be exerted by the back teeth. here a…

A: GivenFM=200 NrR=3.7 cm=0.037 mrM=2.9 cm=0.029 m

Q: What's the acceleration if you push with a 20N horizontal force on a 3kg block on a horizontal table…

A: Given data: Force applied (F) = 20 N Mass (m) = 3 kg Frictional force (f) = 4 N Required:…

Q: What’s the first step in solving a mechanics problem involving dry friction?

A: Step 1 - draw the necessary free body diagram. 2- show the friction force in the correct direction.…

Q: A 4.80 Kg bucket of water is accelerated upward by a cord of negligible mass whose breaking strenght…

A: Given, a cord of negligible mass having Tension in cord, T= 75 N Bucket of water has Mass, m= 4.80…

Concept explainers

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows:

Topic Video

Question

At the instant a race began, a 65-kg sprinter exerted a force of 720 N on the starting block at a 22^oangle with respect to the ground. (a) What was the horizontal acceleration of the sprinter? (b) If the force was exerted for 0.32 s, with what speed did the spinter leave the starting block?

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

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

Trending now

This is a popular solution!

Step by step

Solved in 8 steps with 6 images

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, physics and related others by exploring similar questions and additional content below.

Similar questions

Suppose that the resistive force of the air on a skydiver can be approximated by f=bv2 . If the terminal velocity of a 50.0-kg skydiver is 60.0 m/s, what is the value of b?
If the order of the barges of the preceding exercise is reversed so that the tugboat pulls the 3.00103-kgbarge with a force of 20.0103N , what are the acceleration of the barges and the tension in the coupling cable?
Check Your Understanding A 550-kg sports car collides with a 2200-kg truck, and during the collision, the net force on each vehicle is the force exerted by the other. If the magnitude of the truck’s acceleration is 10m/s2 , what is the magnitude of the sports car’s acceleration?
Consider Figure 5.28. The driver attempts to get the car out of the mud by exerting a perpendicular force of 610.0 N, and the distance she pushes in the middle of the rope is 1.00 m while she stands 6.00 m away from the car on the left and 6.00 m away from the tree on the right. What is the tension Tin the rope, and how do you find the answer?
Find the acceleration of the body of mass 10.0 kg shown below.
Check Your Understanding Calculate the acceleration of the system, and the tension in the string, when the masses are and
A helicopter with mass 2.35104kg has a position given by r(t)=(0.020t3)i +(2.2t)j -(0.060t2)k . Find the net force on the helicopter at t=3.0s .
Show that the acceleration of any object down a frictionless incline that makes an angle with the horizontal is a=gsin . (Note that this acceleration is independent of mass.)
What properties do forces have that allow us to classify them as vectors?
In the figure, the coefficient of kinetic friction between the surface and the blocks is k. If M=1.0kg , find an expression for the magnitude of the acceleration of either block (in terms of F , k , and g ).
Located at the origin, an electric car of mass mis at rest and in equilibrium. A time dependent force of F(t)is applied at time t=0 , and its components are Fx(t)=p+ntand Fy(t)=qtwhere p , q , and nare constants. Find the position r(t)and velocity v(t)as functions of time t .
Check Your Understanding Find the direction of the resultant for the 1.50-kg model helicopter.