The centripetal force on an object of mass m moving in a circle of radius r with a speed v is: ? = (??^2)/? . Determine the centripetal force and uncertainty for m = 0.80 ± 0.02 kg, r = 1.22 ± 0.02 m, and v = 10.1 ± 0.2 m/s.
The centripetal force on an object of mass m moving in a circle of radius r...
An object of mass m moves in a vertical circle of radius R at a constant speed v. The work done by the centripetal force as the object moves from the top to the bottom of the circle is: A. mgR B. 1/2*mv^2 C. 2mgR D. 0 E. mgR+1/2*mv^2
5. Consider an object of mass m moving with constant speed v in a circle of radius r. What is the algebraic expression for the centripetal acceleration ac of the object in terms of its speed v and radius r? (Use any variable stated in this part.) ac =
An object of mass 0.2 kg is moving in a circle of radius 2 m with translational acceleration a = 5 m/s^2 . What will be the total Torque on the object?
2)A centripetal force F is applied to an object moving at a currant speed vin a horizontal relea speedvin a horizontal circle of radius r. If the radius is quadrupled and the speed is doubled, what happens to the centripetal force? 2v (A) Increased by a factor of 2 (8) decreased by a factor of 2 (C) doesn't change (D) increased by a factor of v2 Y 2
A centripetal force acts on a ball of mass m = 1kg being swung in a circle of radius r = 1m at a speed of v = 200m/s. How much work does this force do?
The direction of the centripetal force is always in the same direction a. as the centripetal acceleration vector b. as the velocity vector c. that an object would have if the centripetal acceleration suddenly stopped d. as the direction of motion of the object In this question, "constant in direction" refers to a fixed direction such as east or west. For uniform circular motion, the acceleration vector is a. changing in magnitude but constant in direction b. constant in magnitude...
(b) For an object in uniform circular motion, derive the expression which relates centripetal force to speed. (5 marks] (c) A person swings an object around in a circle on the end of a steel wire, at a constant speed completing one revolution every 1.9 s. The object has a mass of 1.75 kg. The radius of the circle is 2.3 m. (i) Draw a diagram indicating the direction of the following vectors: velocity, centripetal acceleration, centripetal force. [3 marks]...
Consider an object in uniform circular motion. A.) If the trajectory and the mass of the object are unchanged, but the centripetal force is doubled, is the object's speed multiplied by a factor of 1, square root of 2, 2, or 4? B.) If the mass of the object is halved and the radius of the circle quadrupled, while keeping the mass of the object the same, is the object's speed multiplied by a factor of1, square root of 2,...
For an object moving in a circle of radius r centered on the origin at a speed v the position, r, as a function of time is given by r(t) = r(cos((v/r)t)i + sin((v/r)t)j) (a) Find the expression for the velocity, v, as a function of time.
An object, moving along the circumference of a circle with radius R, is acted upon by a force of constant magnitude F. The force is directed at all times at a 30 angle with respect to the tangent to the circle as shown in the figure . Determine the work done by this force when the object moves along the half circle from A to B. Express your answer in terms of the variables , , and appropriate constants.