Homework Statement
b) A person standing on the edge of a 100 m high cliff drops a 0.5 kg stone vertically downwards. Determine the final velocity of the stone after falling 100m, and its kinetic energy.
Homework Equations
Final velocity
v = √(2gx)
The Attempt at a Solution
final...
yeah i do know it's 300rev/min, but how did u find the 300rev/min?
so to answer the question.
Q. The rotational speed of pully B
A. Since pully A as a rotational speed of 300rev/min
and both pully have the same linear speed, so pully b as a rotational speed of 300rev/min?
(i)
To find linear speed in (m/s)
v= RxW
V=0.25x(300x(2pi/60))
v=0.25x31.4159
v=7.85m/s
is that corect now?
i don't get you on the rotational speed of pully B.
if i get the rotational speed of the pully B, i will be able to have the correct value for Wb yeah?
Homework Statement
(b) Fig. Q.6 shows a belt drive system where pulley A (diameter 0.5 m) is transmitting power to pulley B (diameter 0.25 m), mounted on a parallel rotating shaft. The tight and slack-side tensions of the belt are 500 N and 200 N respectively, and pulley A rotates at 300...
Is the Distance traveled during acceleration correct?
The constant velocity come from the second part of question (iii).
Question:
(iii)Determine The work done during acceleration and the constant velocity.
Work done during acceleration
W=FxD
w= 36x18
w= 648 joules
now how to find the...
my bad s= 1/2(u+v)t
s= 1/2(0+3)12
s= 1/2(3)12
s= 1.5(12)
s= 18m
Work done during acceleration and constant velocity
W=FxD
w= 36x18
w= 648 joules
now how to find the constant velocity?
is it
c.v => (Mass x Tractive resistance rate)
c.v= 80x0.2...
Homework Statement
A cyclist accelerates from rest to a velocity of 3 m/s in 12 seconds, continues at this speed for one minute and then freewheels to stop. If the total mass of cyclist and cycle is 80 kg, and the tractive resistance rate may be assumed constant at 0.2 N/kg.,
Homework...