Answer:
minimum stopping distance will be d = 75 m
Explanation:
Maximum force exerted by the bracket is given as
F = 9000 N
now we know that mass of the object is
m = 6000 kg
so the maximum acceleration that truck can have is given as
![F = ma](https://tex.z-dn.net/?f=F%20%3D%20ma)
![9000 = 6000 a](https://tex.z-dn.net/?f=9000%20%3D%206000%20a)
![a = 1.5 m/s^2](https://tex.z-dn.net/?f=a%20%3D%201.5%20m%2Fs%5E2)
now for finding minimum stopping distance of the truck
![v_f^2 - v_i^2 = 2a d](https://tex.z-dn.net/?f=v_f%5E2%20-%20v_i%5E2%20%3D%202a%20d)
![0^2 - 15^2 = 2(-1.5) d](https://tex.z-dn.net/?f=0%5E2%20-%2015%5E2%20%3D%202%28-1.5%29%20d)
![d = 75 m](https://tex.z-dn.net/?f=d%20%3D%2075%20m)
$0.60
90 mins is 1.5 hrs
5 kW × 1.5 = 7.5 kWh
7.5 kWh × $0.08 = $0.60
Answer:
I=0.0361 kg.m^2
Explanation:
Torque is the rotational equivalent of a force
Torque= perpendicular distance r X Force F
Torque T = I(moment of inertia) X α (angular acceleration)
T= Iα
r= 0.0285m
F= 1.9 x 10^3
T=0.0285 x 1.9 x 10^3
T= 54.15Nm
I=T/α
I=54.15/150
I=0.361 kg.m^2
Answer
Wavelength= 30*20^8/30=10^7m
Explanation:
Velocity = frequency *wavelength
We're frequency=30HZ
Velocity of light= 3*10^8m/s
Wavelength= 30*20^8/30=10^7m
Explanation:
Answer:
Ohms law
Explanation:
Which states that the current flowing through any cross-section of the conductor is directly proportional to the potential differenceapplied across its end, provided physical conditions like temperature and pressure remain constant.