In Fig. 7-10 a , a block of mass m lies on a horizontal frictionless surface and is attached to one end of a horizontal spring (spring constant k ) whose other end is fixed.The block is initially at rest at the position where the spring is unstretched ( x = 0 ) when a constant horizontal force F → in the positive direction of the x axis is applied to it. A plot of the resulting kinetic energy of the block versus its position x is shown in Fig. 7-36. The scale of the figure’s vertical axis is set by K s = 4.0 J. (a) What is the magnitude of F → ? (b) What is the value of k ? Figure 7-36 Problem 30.
In Fig. 7-10 a , a block of mass m lies on a horizontal frictionless surface and is attached to one end of a horizontal spring (spring constant k ) whose other end is fixed.The block is initially at rest at the position where the spring is unstretched ( x = 0 ) when a constant horizontal force F → in the positive direction of the x axis is applied to it. A plot of the resulting kinetic energy of the block versus its position x is shown in Fig. 7-36. The scale of the figure’s vertical axis is set by K s = 4.0 J. (a) What is the magnitude of F → ? (b) What is the value of k ? Figure 7-36 Problem 30.
In Fig. 7-10a, a block of mass m lies on a horizontal frictionless surface and is attached to one end of a horizontal spring (spring constant k) whose other end is fixed.The block is initially at rest at the position where the spring is unstretched (x= 0) when a constant horizontal force
F
→
in the positive direction of the x axis is applied to it. A plot of the resulting kinetic energy of the block versus its position x is shown in Fig. 7-36. The scale of the figure’s vertical axis is set by Ks = 4.0 J. (a) What is the magnitude of
F
→
? (b) What is the value of k?
Solve and answer the question correctly please. Thank you!!
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The position of a particle is described by r = (300e 0.5t) mm and 0 = (0.3t²) rad,
where t is in seconds.
Part A
Determine the magnitude of the particle's velocity at the instant t = 1.5 s.
Express your answer to three significant figures and include the appropriate units.
v =
Value
Submit
Request Answer
Part B
?
Units
Determine the magnitude of the particle's acceleration at the instant t = 1.5 s.
Express your answer to three significant figures and include the appropriate units.
a =
Value
A
?
Units
Solve and answer the question correctly please. Thank you!!
Chapter 7 Solutions
Fundamentals Of Physics 11e Student Solutions Manual
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