Ans:
a. True
explanation:

4. If a velocity graph of an object is a horizontal line, then the object is...
5. The following graph represents the velocity of an object, moving along a horizontal line as a function of time. Express all answers to two significant figures. East is the positive direction and West is negative. (6 marks) Velocity Vs. Time 10 Velocity. (m/s) 10 12 14 -6 Time, t(s) a) Determine the acceleration of the object at 1.0s. b) Determine the average velocity of the object between 4.0 and 8.0 s. c) Over what time interval(s), if any, is...
5. The following graph represents the velocity of an object, moving along a horizontal line as a function of time. Express all answers to two significant figures. East is the positive direction and West is negative. (6 marks) Velocity Vs. Time 10 8 6 Velocity. (m/s) 10 12 14 -2 -6 .8 Time, t, (s) a) Determine the acceleration of the object at 1.0. b) Determine the average velocity of the object between 4.0 and 8.0 s. c) Over what...
4. The following graph represents the position of an object, moving along a horizontal line as a function of time. The positive direction is East and negative direction is West. Express all answers to two significant figures. (5 marks) Position Vs. Time 15 10 6 8 10 12 14 16 18 -10 -15 Time, t, (s) a) Over what time interval(s), if any, is the object stopped? b) At what time(s), if any, does the object change direction? c) Determine...
6. A 2.0-kg object moves in a straight line on a horizontal frictionless surface. The graph above shows the velocity of the object as a function of time. The various equal time intervals (sections) are labeled using Roman numerals: I, II, III, IV, and V. The net force on the object always acts along the line of motion of the object Which section(s) of the graph correspond to a condition of zero net force? a. b. Which section(s) of the...
Part A: An object is moving with constant non-zero velocity in the +x axis. The position versus time graph of this object is Part B: An object is moving with constant non-zero acceleration in the +x axis. The position versus time graph of this object is Part C: An object is moving with constant non-zero velocity in the +x axis. The velocity versus time graph of this object is Part D: An object is moving with constant non-zero acceleration in...
4. Draw both a position-versus-time graph and a velocity-versus-time graph for an object at rest at x=1m. 5. The figure shows the position-versus-time graphs for two objects, A and B, that are moving along the same axis. At the instant t1 s, is the speed of A greater than, less than, or equa to the speed of B? Explain. b. Do objects A and B ever have the same speed? If so, at what time or times? Explain. 6. Below...
An object can move along a horizontal line but only on the positive side of the position axis. Friction is so small it is negligible. The object's velocity-time graph is shown below. 7. 0 Time (s) Sketch the shape of the acceleration-time and force-time graphs on the following axes. Time (s) Time (s)
Is this statement true? For a free fall object(the horizontal component of the initial velocity is zero), its velocity is zero when it reaches maximum height, but its acceleration is not zero at the same time.
If the net torque on a rotating object is zero, the angular velocity of the object cannot change. True or False? Explain A. True , Explan: _________ B False , Explan: _________ (I know the answer is B, I need help on explanation) Thanks
The figure(Figure 1) shows the velocity graph of a 2.7kg object
as it moves along the x-axis.
A) What is the net force acting on this object at t= 1
s?
B) At 4 s?
C) At 7 s?
The figure(Figure 1) shows the velocity graph of a 2.7kg object as it moves along the x - axis. A) What is the net force acting on this object at t= 1 s? B) At 4 s? C) At 7 s?