3 years ago

Un cuerpo gira con movimiento circular uniforme un ángulo total de 1080° en 20

Physics

1 answer:

LekaFEV [45]3 years ago

7 0

Velocidad angular = (angulo total) / (tiempo total)

Velocidad angular = (1080 grados) / (20 segundos)

Velocidad angular = (1080/20) g/s

Velocidad angular = 54 g/s

Pero 180 grados = π radianes

V.A. = (54 g/s) x (π rad / 180 g)

V.A. = (54π gr-rad / 180 seg-gr)

V.A. = aproximadamente 0.942 rad/seg

You might be interested in

A 5.0-kg box has an acceleration of 2.0 m/s2 when it is pulled by a horizontal force across a surface with μK = 0.50. Find the w

Maslowich

Answer:a) 34.5 N; b) 24.5 N; c) 10 N; d) 1J

Explanation: In order to solve this problem we have to used the second Newton law given by:

∑F= m*a

F-f=m*a where f is the friction force (uk*Normal), from this we have

F= m*a+f=5 Kg*2 m/s^2+0.5*5Kg*9.8 m/s^2= 34.5 N

then f=uk*N=0.5*5Kg*9.8 m/s^2= 24.5N

the net Force = (34.5-24.5)N= 10 N

Finally the work done by the net force is equal to kinetic energy change so

W=∫Force net*dr= 10 N* 0.1 m= 1J

7 0

3 years ago

Read 2 more answers

Please help At which point is the potential energy the greatest ?

4vir4ik [10]

Answer: 3

Explanation:

5 0

2 years ago

Question 1

ella [17]

I think the answer maybe C

5 0

3 years ago

Read 2 more answers

A 8.50-kg object is hung from the bottom end of a vertical spring fastened to an overhead beam. The object is set into vertical

SpyIntel [72]

Answer: The force constant of the spring is 116.1N/m

Explanation: Please see the attachments below

5 0

3 years ago

Read 2 more answers

Does the moon make its own light?

Stels [109]

Answer:

no it gets it form the sun

Explanation:

8 0

3 years ago

Read 2 more answers