1. Questions

physics

true or false
If a net force acts on an object, the object's speed will change.

An object's velocity will change if a net force acts on the object.

If two object have the same acceleration, they are under the influence of equal forces.

The net force which acts on an object which remains at rest is zero.

A truck initially moving at a constant velocity will slow down unless a small net force is applied

During the collision of a car with a large truck, the car exerts a lesser force on the truck than the truck exerts on the car.

  1. 👍 1
  2. 👎 1
  3. 👁 2,910
molly

  1. true or false
    If a net force acts on an object, the object's speed will change.

    Usually, but not for example if going in a circle.

    An object's velocity will change if a net force acts on the object.

    Yes, magnitude or direction or both

    If two object have the same acceleration, they are under the influence of equal forces.

    What if they have different masses?

    The net force which acts on an object which remains at rest is zero.

    Guess so or it would accelerate.

    A truck initially moving at a constant velocity will slow down unless a small net force is applied

    In practice yes due to air drag and other frictional forces

    During the collision of a car with a large truck, the car exerts a lesser force on the truck than the truck exerts on the car.

    The force on one is equal in magnitude and opposite in direction to the force on the other. The resulting accelerations are quite different.

    1. 👍 0
    2. 👎 0
    Damon

  2. thanks, i got them all except for the first one.

    1. 👍 0
    2. 👎 0
    molly

  4. t
    f
    t
    f

    1. 👍 0
    2. 👎 0
    PLK

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    A 53.5 N object is in free fall. What is the magnitude of the net force which acts on the object? Answer in units of N What is the magnitude of the net force when the object encounters 15.4 N of air resistance? Answer in units of

  2. physics

    Which of the following statements about work is or are true? (More than one statement may be true.) A. Negative net work done on an object always reduces the object's kinetic energy. B. If the work done on an object by a force is

  3. Science

    True / False: If a 40 kg person is accelerating at 10 m/s^2,then the magnitude of the force acting on him or her is 400 N. 1.How much force is needed to make a 60 kg object accelerate at a rate or 2.0 m/s ^2? 2.What is the

  4. Science

    4: Which of the following is true of an object in a circular motion at a constant speed? A: The net force on the object is zero B: The object is not accelerating as the speed of the object remains the same C:the object is

  1. Physics

    The kinetic energy K of an object of mass m moving at a speed v is defined as K=(1/2)mv^2. It seems reasonable to say that the speed of an object--and, therefore, its kinetic energy--can be changed by performing work on the

  2. Physics - Mechanics and Ocsillatory Motion

    The force shown in the figure acts on a 1.7-kg object whose initial speed is 0.44 m/s and initial position is x = 0.27 m. the figure can be found at: [[webassign dot net forwardslash walker forwardslash 07-16 dot gif]] (a) Find

  3. Physics

    Please Help. A 5 kg object is propelled from rest at time t=0 by a net force F that always acts in the same direction. The magnitude of F in newtons is given as a function of t in seconds by F= 0.5t. What is the speed of the

  4. Physics

    An object of mass .550kg is lifted from the floor to a height of 3.5m at a constant speed. How much work is done by the lifting force (include units)? b.) How much work is done by the Earth on the object? c.) What is the net work

  1. science

    1.)a basketball momentarily changes shapes as it bounces off the floor. this is due to balanced forces acting on the ball. True (answer) false 2.) a ball slowing down as it roles across the carpet is an example of what ? (1 point)

  2. Physics

    Select which of the following statements are True or False. Assume Newtonian Mechanics. 1.The work required to lift a mass one meter depends on the speed at which it is raised.. 2.The acceleration of an object is same in all

  3. Physics

    Explain how to calculate net force of an object and how that will change the object’s motion.

  4. Physics

    Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. The work done on object A is 500J. After the force pulled each object, object A moves twice as

You can view more similar questions or ask a new question.