**$ 20.00**

# TEST BANK FOR Elementary Mechanics and Thermodynamics By Prof. John W. Norbury

- GradeMaster1
- Rating : 1
- Grade :
**C+** - Questions : 0
- Solutions : 1124
- Blog : 0
- Earned : $278.60

CHAPTER 1. MOTION ALONG A STRAIGHT LINE

1. The following functions give the position as a function of time:

i) x = A

ii) x = Bt

iii) x = Ct2

iv) x = Dcos !t

v) x = E sin !t

where A;B;C;D;E; ! are constants.

A) What are the units for A;B;C;D;E; !?

B) Write down the velocity and acceleration equations as a function of

time. Indicate for what functions the acceleration is constant.

C) Sketch graphs of x; v; a as a function of time.

SOLUTION

A) X is always in m.

Thus we must have A in m; B in msec¡1, C in msec¡2.

!t is always an angle, µ is radius and cos µ and sin µ have no units.

Thus ! must be sec¡1 or radians sec¡1.

D and E must be m.

B) v = dx

dt and a = dv

dt. Thus

i) v = 0 ii) v = B iii) v = Ct

iv) v = ¡!D sin !t v) v = !E cos !t

and notice that the units we worked out in part A) are all consistent

with v having units of m¢ sec¡1. Similarly

i) a = 0 ii) a = 0 iii) a = C

iv) a = ¡!2Dcos !t v) a = ¡!2E sin !t

## [Solved] TEST BANK FOR Elementary Mechanics and Thermodynamics By Prof. John W. Norbury

- This solution is not purchased yet.
- Submitted On 14 Nov, 2021 02:41:57

- GradeMaster1
- Rating : 1
- Grade :
**C+** - Questions : 0
- Solutions : 1124
- Blog : 0
- Earned : $278.60