mechanical engineering dynamics please solve question 7 Q7 -8 The roller-coaster car has a speed of 20 ft/s when it is at the crest of a verticalparabolic track. Determine the car's velocity in m/s when it reaches point B. Neglectfriction and the mass of the wheels. The total weight of the car and the passengers is 350Ib.-20 fi/s200 t-200 ftA 113.67B 114.48C115.24D 116.21E 117.43F118.39Q8-8 The roller-coaster car has a speed of 20 ft/s when it is at the crest of a verticalparabolic track. Determine the nomal force it exerts on the track when it reaches point Bin N. Neglect friction and the mass of the wheels. The total weight of the car and thepassengers is 350 lb.A 30.4B 29.1E 25.327.4D 26.724.2Q9-10 The 2300 kg car increases its speed uniformly from rest to 40 m/s in 20 s up theinclined road. Determine the maximum power in kW that must be supplied by the engine,which operates with an efficiency of c = 0.85.3.20B 147E 456A 113C319D 374F624Q10-10 The 2300 kg car increases its speed uniformly from rest to 40 m/s in 20 s up uewith an efficiency of c= 0.85.A 57B 74C160312D 187E 228

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Q7 -8 The roller-coaster car has a speed of 20 ft/s when it is at the crest of a vertical parabolic track. Determine the car's velocity in m/s when it reaches point B. Neglect friction and the mass of the wheels. The total weight of the car and the passengers is 350 Ib. 20 fr

Q7 -8 The roller-coaster car has a speed of 20 ft/s when it is at the crest of a vertical parabolic track. Determine the car's velocity in m/s when it reaches point B. Neglect friction and the mass of the wheels. The total weight of the car and the passengers is 350 Ib. 20 fr

Elements Of Electromagnetics

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Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.

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mechanical engineering dynamics please solve question 7

Q7 -8 The roller-coaster car has a speed of 20 ft/s when it is at the crest of a vertical
parabolic track. Determine the car's velocity in m/s when it reaches point B. Neglect
friction and the mass of the wheels. The total weight of the car and the passengers is 350
Ib.
-20 fi/s
200 t
-200 ft
A 113.67
B 114.48
C
115.24
D 116.21
E 117.43
F
118.39
Q8-8 The roller-coaster car has a speed of 20 ft/s when it is at the crest of a vertical
parabolic track. Determine the nomal force it exerts on the track when it reaches point B
in N. Neglect friction and the mass of the wheels. The total weight of the car and the
passengers is 350 lb.
A 30.4
B 29.1
E 25.3
27.4
D 26.7
24.2
Q9-10 The 2300 kg car increases its speed uniformly from rest to 40 m/s in 20 s up the
inclined road. Determine the maximum power in kW that must be supplied by the engine,
which operates with an efficiency of c = 0.85.
3.
20
B 147
E 456
A 113
C
319
D 374
F
624
Q10-10 The 2300 kg car increases its speed uniformly from rest to 40 m/s in 20 s up ue
with an efficiency of c= 0.85.
A 57
B 74
C
160
312
D 187
E 228

Branch of science that deals with the stationary and moving bodies under the influence of forces.

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