Let's call a the acceleration of the system. The problem says that the block m3 is static, so the acceleration is zero: a=0.
Calling
the tension of the string between m1 and m3, and
the tension of the string between m2 and m3, the problem can be solved by writing the following system of equations:
However, we know that a=0 and the problem asks only for
, so we just need to solve the first equation:
and so
Answer:
the time of motion of the ball is 6.89 ms.
Explanation:
Given;
angular speed, ω = 38 rad/s
angular distance, θ = 15 degrees
Angular distance in radian;
Time of motion is calculated as;
Therefore, the time of motion of the ball is 6.89 ms.
Explanation:
It is given that,
Inductance of the inductor, 
Resistance of the resistor, R = 10 ohms
(a) Let 
is the time constant of the circuit. It is given by :
(b) The current equation in RL circuit is given by :
I' = 0.99 I
t = 4.6 ms
Hence, this is the required solution.
200 miles from a nation's coast
Answer:
160000000 kg.
Explanation:
p=mv
p=1.6x10^9
v=10m/s
rearrange and substitute:
(1.6x10^9)=m(10)
m=(1.6x10^9)/10
m= 1.6x10^8 kg.
