whatsapp.com20kg object is having an acceleration of 4 m/s in the North direction the net force acting on the objectisSelect one:Oa 5N: NorthonOb. 80 N: NorthOc 5N: SouthOd. 80 N: SouthA golf club hits a golf ball with a force of 2500 N. The golf ball hits the club with a forceSelect one:Oa. Less than 2500 Nore than 2500NCExactly 2500 NENG d)

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Description: whatsapp.com20kg object is having an acceleration of 4 m/s in the North direction the net force acting on the objectisSelect one:Oa 5N: NorthonOb. 80 N: NorthOc 5N: SouthOd. 80 N: SouthA golf club hits a golf ball with a force of 2500 N. The golf ba

1) we know that Force= mass * acceleration here , mass = 20kg acceleration =4 m/s2…

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ect is ration of 4 m/s in the North directione the net force acting on the objectis Select oner Oa 5N: North Ob. 80 N: North Oc 5N: South Od 80 N: South A golf club hits a golf ball with a force of 2500 N. The golf ball hits the club with a force Select one: O a. Less than 2500 N

ect is ration of 4 m/s in the North directione the net force acting on the objectis Select oner Oa 5N: North Ob. 80 N: North Oc 5N: South Od 80 N: South A golf club hits a golf ball with a force of 2500 N. The golf ball hits the club with a force Select one: O a. Less than 2500 N

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 33P: A powerful motorcycle can produce an acceleration of 3.50m/s2 while traveling at 90.0 km/h. At that...

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At a circus, a donkey pulls on a sled carrying a small clown with a force given by . A horse pulls on the same sled, aiding the hapless donkey, with a force of The mass of the sled is 575 kg. Using and from for the answer to each problem, find (a) the net force on the sled when the two animals act together, (b) the acceleration of the sled, and (c) the velocity after 6.50 s.
Check Your Understanding A car gas forces acting on it, as shown below. The mass of the car is 1000.0 kg. The rode is slick, so friction can be ignored. (a) What is the net force on the car? (b) What is the acceleration of the car?
When you take off in a jet aircraft, there is a sensation of being pushed back into the seat. Explain why you move backward in the seat—is there really a force backward on you? (The same reasoning explains whiplash injuries, in which the head is apparently thrown backward.)
Astronauts in orbit are apparently weightless. This means that a clever method of measuring the mass of astronauts is needed to monitor their mass gains or losses, and adjust their diet. One way to do this is to exert a known force on an astronaut and measure the acceleration produced. Suppose a net external force of 50.0 N is exerted, and an astronaut’s acceleration is measured to be 0.893m/s2 . (a) Calculate her mass. (b) By exerting a force on the astronaut, the vehicle in which she orbits experiences an equal and opposite force. Use this knowledge to find an equation for the acceleration of the system (astronaut and spaceship) that would be measured by a nearby observer. (c) Discuss how this would affect the measurement of the astronaut’s acceleration. Propose a method by which recoil of the vehicle is avoided.
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800.0 N on him. The mass of the losing player plus equipment is 90.0 kg, and he is accelerating backward at 1.20m/s2 . (a) What is the force of friction between the losing player’s feet and the grass? (b) What force does the winning player exert on the ground to move forward if his mass plus equipment is 110.0 kg?
Check Your Understanding A force of 1150 N acts parallel to a ramp to push a 250-kg gun safe into a moving van. The ramp is frictionless and inclined at 17 . (a) What is the acceleration of the safe up the ramp? (b) If we consider friction in this problem, with a friction force of 120 N, what is the acceleration of the safe?
What net external force is exerted on a 1100-kg artillery shell fired from a battleship if the shell is accelerated at 2.40104 m/s2? What is the magnitude of the force exerted on the ship by the artillery shell?
A powerful motorcycle can produce an acceleration of 3.50m/s2 while traveling at 90.0 km/h. At that speed, the forces resisting motion, including friction and air resistance, total 400.0 N. (Air resistance is analogous to air fiction. It always opposes the motion of an object.) What is the magnitude of the force that motorcycle exerts backward on the ground to produce its acceleration if the mass of the motorcycle with rider is 245 kg?
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A history book is lying on top of a physics book on a desk, as shown below a free-body diagram is also shown. The history and physics books weigh 14 N and 18 N, respectively. Identify each force on each book with a double subscript notation (for instance, the contact force of the history book pressing against physics book can be described as F HP), and determine the value of each of these forces, explaining the process used.
What force is exerted on the tooth in Figure 4.38 if the tension in the wire is 25.0 N? Note that the force applied to the tooth is smaller than the tension in the wire, but this is necessitated by practical considerations of how force can be applied in the mouth. Explicitly show how you follow steps in the Problem-Solving Strategy for Newton's laws of motion. Figure 4.38 Braces are used to apply forces to teeth to realign them. Shown in this figure are the tensions applied by the wire to the protruding tooth. The total force applied to the tooth by the wire, Fapp, points straight toward the back of the mouth.
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