DINAMICA DE ROTACION
Quiz
•
Physics
•
11th Grade
•
Medium
William Alfredo Panchana Alomoto
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un objeto describe un MCU y da 250 vueltas en 1200 segundos, si la circunferencia tiene un radio de 75cm, su velocidad angular es de ....
1,30 m/s
0,98 rad/s
1,31 rad/s
0,98 m/s
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Es el tiempo que demora una partícula en dar una vuelta completa
Frecuencia (f)
360 grados
Revolución
Periodo (T)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En el movimiento circular, la trayectoria es en forma de
parábola
circulo
curva
línea recta
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En el MCU la velocidad angular y radial son:
Variables
Aceleradas
Opuestas
Constantes
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La unidad de medida de la frecuencia es:
segundo
rpm
s
hertz
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un objeto describe un MCU y da 250 vueltas en 1200 segundos, si la circunferencia tiene un radio de 75cm, su periodo es de ....
0,21 s
4,80 s
0,21 Hz
4,79 s
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Encuentre los esfuerzos de reacción en cada uno de los apoyos en la siguiente viga la cual es uniforme y tiene un peso de 200 N.
R1=357,14 N
R1= 735,0 N
R2=212,5 N
R2=442,85N
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Encuentre la aceleración resultante en m/s2 de una particula que se mueve en un circulo de 0,5 m de radio en el instante en que su velocidad angular es de 3 rad/s. Y su aceleración angular es de 4 rad/s2 .
24,45
4,924
4
20,25
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
al convertir 840 rpm en rad/s el resultado es:
15,47
87,96
14
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