Which of the following statements is incorrect?O The frictional force is always opposite the direction of motion or impending motion.O The gravitational force is always directed towards the center of the Earth.none of the choicesO The tensile force exerted on an object always lies along the direction of the string, rope, or cable attached to the object.O The normal force is always perpendicular to the surface.

We have to know the basic theory here.

Which of the following statements is incorrect? O The frictional force is always opposite the direction of motion or impending motion. O The gravitational force is always directed towards the center of the Earth. O none of the choices O The tensile force exerted on an object always lies along the direction of the string, rope, or cable attached to the object. O The normal force is always perpendicular to the surface.

Which of the following statements is incorrect? O The frictional force is always opposite the direction of motion or impending motion. O The gravitational force is always directed towards the center of the Earth. O none of the choices O The tensile force exerted on an object always lies along the direction of the string, rope, or cable attached to the object. O The normal force is always perpendicular to the surface.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A force is acting between the surfaces of these two solid objects where one object is sliding on the surface of another object. The presence of this force makes the object start to slow down. In which direction does this force act in relation to the motion of the object? O This force is acting perpendicular to the velocity of the object. This force is acting in the opposite direction as the velocity of the object. This force is acting at an angle to the velocity of the object. O This force is acting in the same direction as the velocity of the object.
A vertical force F is applied to a block of mass m that lies on a floor. What happens to the magnitude of the normal force on the block from the floor as magnitude F is increased from zero if force is (a) downward and (b) upward? N
A 35.0-kg child swings in a swing supported by two chains, each 2.98 m long. The tension in each chain at the lowest point is 440 N. (a) Find the child's speed at the lowest point.m/s(b) Find the force exerted by the seat on the child at the lowest point. (Ignore the mass of the seat.)N (upward)
A rock is suspended from a string, and it accelerates upward. Which statement is true concerning the tension in the string? O The tension points downward. O The tension is less than the weight of the rock. O The tension is greater than the weight of the rock () The tension Is independent of the magnitude of the rocks acceleration, O The tension is equal to the weight of the rock
14a
A block whose weight is 40 N rests on a horizontal surface. The coefficient of static friction between the block and the surface is 0.50. A string is attached to the block. The string is pulled horizontally with a force of 15 N. Which one of the following statements is correct? O The magnitude of the force of friction on the block is 20 N. O The magnitude of the force of friction on the block is 15 N. O The force of friction cannot be determined because the coefficient of kinetic friction is not given. O The force of friction cannot be determined because the normal force of the surface on the block is not known. O The magnitude of the force of friction on the block is 5 N.
x Incorrect The force P is applied to the 30-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by the surface on the block if (a) P = 0, (b) P = 85 N, and (c) P = 131 N. (d) What value of P is required to initiate motion up the incline? The static and kinetic coefficients of friction between the block and the incline are us = 0.18 and µk = 0.12, respectively. The friction force is positive if up the incline, negative if down the incline. %3D P 30 kg 18° H, = 0.18 H = 0.12 12 Answers: (а) F 3D N (b) F (c) F = (d) P =
A wooden block of mass 5.0 kg is placed on top of a horizontal table top. A string is tied to the wooden block and a 3.0-kg-ball is tied to the other end of the string. The ball is then suspended over a frictionless pulley set at the edge of the table. What should be the coefficient of static friction for the system to be in a state of static equilibrium?
Package C on the incline weighs 300 N, and is pushed by a 294-N horizontal force. The coefficients of static and kinetic friction, respectively, are 0.4 and 0.3. Which is the most appropriate set of equations for equilibrium of C?Correct answer is C but please explain how to get the answer.
Identify the correct answer and explain the answer Why is the answer choice chosen wrong?
An object is moving forward with a constant velocity. Which statement about this object MUST be true? O The net force on the object is zero. O No forces are acting on the object. O The net force on the object is in the forward direction. The acceleration of the object is in the forward direction.
One end of a 34-m unstretchable rope is tied to a tree; the other end is tied to a car stuck in the mud. The motorist pulls sideways on the midpoint of the rope, displacing it a distance of 2 m (assume the car slides forward slightly in response to this, but then become stuck again). If he exerts a force of 99 N under these conditions, determine the force exerted on the car. F=F= Incorrect N