True or False: For an object of mass m, moving at constant velocity implies a constant, nonzero, force acting on it.
True
False
Note- according to newton's second law of motion, force is proportional to acceleration. Thus, if force acts on an object it must have acceleration and velocity can't remain constant.
True or False: For an object of mass m, moving at constant velocity implies a constant,...
An object is moving forward with a constant velocity. Which statement about this object MUST be true? A. No forces are acting on the object. B. The net force on the object is in the forward direction. C. The acceleration of the object is in the forward direction. D. The net force on the object is zero.
1).In a uniform circular motion, instantaneous velocity is tangent to the circle a) True b) False c) Can's say 2).In a uniform circular motion, acceleration is normal to the velocity and directed toward the center a) True b) False c) Unknown 3). For a particle of mass 'm' moving with a uniform velocity 'v' in a circle of radius 'r', write the expression for centripetal force (Fc)? 4). If a particle rotates in a circle of radius r= 10 cm...
feet per second and in miles per second 18 An object of mass m is moving horizontally through a medium which resists the motion with a force that is a func- tion of the velocity; that is, d's dv f(v) dt =m dt2 where v = s(1) represent the velocity and at time , respectively. For example, v(t) and s position of the object think of a boat moving through the water. (a) Suppose that the resisting force is proportional...
True/False Indicate whether the sentence or statement is true or false. 1. The inertia of mass is directly proportional to its velocity. 2. When a constant force is applied to an object,acceleration remains the same. 3. Action and reaction forces have the same direction. 4. When the force acting on an object is doubled, the effect on the acceleration of the object will be tripled. 5. When the normal force is doubled, the coefficient of friction is quadrupled acceleration than...
Please answer the following question
In Case A an object is moving straight downward with a constant speed of 9.80 m/s, while in Case B an object is moving straight downward with a constant acceleration of magnitude 9.80 m/s2. Which one of the following is true? a nonzero net external force acts on the object in neither case. a nonzero net external force acts on the object in Case B only. a nonzero net external force acts on the object...
True or false for each question: If an object moves at constant speed, it must also be moving at constant velocity. If you are given an object
Net 15.04 4. An object of mass M = 12.0 kg is moving in the + x direction. As it passes the point x = 0, its speed is 5.00 m/s. The graph shows the net force, which points in the + x direction, that is acting on the object. Calculate: a) The net work done on the object as it moves from x=0 to X = 5.00 m b) The speed of the object as it passes the point...
(3) A body moving so that,at time t,it's mass is m, it's velocity is v and the resultant force acting on the body is F. Suppose that at this instant, a particle of mass om and velocity u coaleces with the body so that, at time ot, the body has the mass m + Sm and the velocity v + öv. Prove that Fma (v- D-u a. A body with initial mass rn is projected vertically upwards with speed where...
The only force acting on a 1.0-kg object moving along the x axis is shown. If the velocity Vx is +2.0 m/s at t = 0, what is the velocity at t = 4.0 s?
1). In a uniform circular motion, instantaneous velocity is tangent to the circle a) True b) False c) Can's say 2).In a uniform circular motion, acceleration is normal to the velocity and directed toward the center a) True b) False c) Unknown 3). For a particle of mass 'm' moving with a uniform velocity 'v'in a circle of radius 'r', write the expression for centripetal force (Fc)? 4). If a particle rotates in a circle of radius r = 10...