MCU-MCUV
Quiz
•
Physics
•
University
•
Hard
Juan Arias Carrasco
Used 175+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un cuerpo posee una velocidad de 10π rad/s (constante). Hallar el número de vueltas que da en medio minuto
50
150
200
250
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un disco con MCU, gira con 11 RPS. Hallar el número de vueltas que genera en el cuarto segundo de su movimiento
11
21
110
100
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un cuerpo posee una velocidad constante de 90 RPM. Hallar el ángulo que gira en 2 s
16π rad
26π rad
36π rad
6π rad
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
El periodo de un disco con MCU es de 4 segundos. Hallar su velocidad lineal (tangencial), si su radio es de 10 cm
15π cm/s
5π cm/s
25π cm/s
35π cm/s
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un disco gira a razón de 45 RPM y tiene un radio igual a 15 cm. Determinar la velocidad tangencial de un punto que se encuentra a 7 cm del borde.
17π cm/s
12π cm/s
13π cm/s
10π cm/s
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Con respecto a la aceleración centrípeta de una partícula en un movimiento circular , indique cuales de las siguientes afirmaciones son verdaderas (V) o falsas (F):
I. La aceleración centrípeta es constante.
II. En algunos casos puede producir un incremento en la magnitud de la velocidad.
III. Es exclusiva del movimiento circular uniforme.
FVF
VVF
FFF
VVV
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Si los discos giran tangencialmente, hallar “ωB” (RA= 6 cm; RB=15 cm); ωA=10 rad/s
1 rad/s
2 rad/s
4 rad/s
6 rad/s
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