The acceleration of a body cannot be zero at a point where
Group of answer choices
the average velocity is positive.
the instantaneous velocity is increasing.
none of these.
the instantaneous velocity is zero.
Answer: The correct answer is part b because if the instantaneous velocity is increasing at a point then it is changing. This means that there is a rate of change of velocity present, which is nothing but the definition of acceleration.
The acceleration of a body cannot be zero at a point where Group of answer choices...
If an object is in equilibrium, which of these is definitely true? Group of answer choices There is no net force on the object. Its velocity is zero. Its acceleration is positive. None of the answers given is true.
The instantaneous center of zero velocity for the body is located at point IC (0.5 m, 2 m). If the body has an angular velocity of 4 rad/s, as shown, determine the velocity of B with respect to A. 10. IC ω= 4 rad/s 0.5 m 1.5 m be 0.5 m 1.5 m
1. The position of a particle is given by: x(t)= At^3 +Bt^-2 Where A = 1 m / s3 and B = 1 m (s^2) a) Find the average speed between one second and four seconds. b) Find the instantaneous velocity at a time t. c) Find the instantaneous velocity at t = 0.5 s d) At what time does the speed become zero? e) Find the instantaneous acceleration at a time t. f) Find the acceleration at t =...
Zero percent coinsurance means Group of answer choices one is uninsured zero deductible but there is copay free insurance no coinsurance but deductible is $10,000
One of the choices below increases the magnitude of the acceleration of a point on a spinning wheel by a factor of 4. Don NOT assume that the wheel is spinning at a constant speed. A) The magnitudes of the angular velocity and the angular acceleration are each multiplied by a factor of 4 B) The magnitude of the angular velocity is multiplied by a factor of 4 and the angular acceleration is not changed C) The magnitudes of the...
Service businesses cannot incorporate quality standards. Group of answer choices True False
If total utility is increasing, then marginal utility: Group of answer choices Must be increasing at an increasing rate Must be declining Must be increasing May either be increasing or decreasing, but it must be greater than zero
Under what conditions, is linear momentum conserved? Check all that apply. Group of answer choices There are no frictional forces. The action of the force is instantaneous. The net torque is minimal. The net force vanishes. The work done is positive.
An object is thrown upword verticlly, at the highiest point the object 1. has zero velocity and negative acceleration 2. has zero velocity and zero acceleration 3. has zero velocity and positive acceleration 4. has positive velocity and positive acceleration 5. has negative velocity and negative acceleration
The principal-agent problem happens because the owner Group of answer choices cannot control the production process. cannot spend time at the physical plant site. cannot monitor the efforts of the manager. cannot evaluate the efforts of the manager.