1757079
Pregunta 1
Pregunta
Assuming that the box is moving to the right, what is the magnitude and direction of the force applied by the person pushing?
Respuesta
-
2 N, right
-
2 N, left
-
0.4 N, right
-
0.4 N, left
-
10 N, left
Pregunta 2
Pregunta
A car slides up a frictionless inclined plane. How does the normal force of the incline on the car compare with the weight of the car?
Respuesta
-
The normal force must be equal to the car's weight.
-
The normal force must be less than the car's weight.
-
The normal force must be greater than the car's weight.
-
The normal force must be zero.
-
The normal force could have any value relative to the car's weight.
Pregunta 3
Pregunta
What is the magnitude of the acceleration of the 40 kg block?
Respuesta
-
0.5 m/s•s
-
1 m/s•s
-
2 m/s•s
-
4 m/s•s
-
5 m/s•s
Pregunta 4
Pregunta
What is the magnitude of the tension T in the rope that connects the two blocks?
Respuesta
-
0 N
-
10 N
-
20 N
-
40 N
-
50 N
Pregunta 5
Pregunta
Two people are pulling on the ends of a rope. Each person pulls with a force of 100 N. The tension in the rope is:
Respuesta
-
0 N
-
50 N
-
100 N
-
141 N
-
200 N
Pregunta 6
Pregunta
What must be necessary for the driver to feel weightless?
Respuesta
-
at the top of a hill when v > √gr
-
at the bottom of a hill when v > √gr
-
going down a hill when v = √gr
-
at the top of a hill when v < √gr
-
at the bottom of a hill when v < √gr
Pregunta 7
Pregunta
In which position would the tension in the string be largest?
Respuesta
-
The tension in mass A
-
The tension in mass B
-
The tension in mass C
-
The tension in mass D
-
All strings have the same tension
Pregunta 8
Pregunta
What is the magnitude of the acceleration of the "two block" system?
Respuesta
-
1 m/s•s
-
2 m/s•s
-
3 m/s•s
-
6 m/s•s
-
15 m/s•s
Pregunta 9
Pregunta
What is the magnitude of the force of static friction between the top and bottom blocks?
Respuesta
-
0 N
-
10 N
-
20 N
-
25 N
-
30 N
Pregunta 10
Pregunta
What is the minimum coefficient of static friction necessary to keep the top block from slipping on the bottom block?
Respuesta
-
0.05
-
0.10
-
0.20
-
0.30
-
0.40
Pregunta 11
Pregunta
A satellite orbiting the Earth with a radius of R has an acceleration due to gravity of Ag. If the radius is doubled, what is the acceleration of the satellite?
Respuesta
-
Ag
-
Ag/4
-
Ag/2
-
Ag/3
-
Ag/16
Pregunta 12
Pregunta
What is the tension in the horizontal cable?
Respuesta
-
87 N
-
150 N
-
170 N
-
260 N
-
300 N
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.