What is the kinetic energy of a 1500 kg car?
What is the kinetic energy of a 1500-kg car moving at 25m/s. Here, Given- mass=1000kg Speed=20m/s Formula for Ek=1/2mv² Putting the value in the formula We get Ek=1/2×1000×20 =10000joules.
What factors affects the kinetic energy of an object?
1. Explain that there are two factors that affect how much kinetic energy a moving object will have: mass and speed.
What is the kinetic energy of a 45 kg object moving at 13 m s?
Answer: The Kinetic Energy of the object is 3802.5 J.
What is power write its formula?
P = W / t. The standard metric unit of power is the Watt. As is implied by the equation for power, a unit of power is equivalent to a unit of work divided by a unit of time. Thus, a Watt is equivalent to a Joule/second.
What is electrical power formula?
The formula for electric power is, P = VI. P = 10 × 2.5 = 25watts.
What are the three formula of power?
1 W = 1 J/s. Power = force multiplied by speed (velocity) P = F × v….ALTERNATING CURRENT (AC) ~
| Current (single phase): I = P / Vp×cos φ | Current (3 phases): I = P / √3 Vl×cos φ or I = P / 3 Vp×cos φ |
|---|---|
| Power (single phase): P = Vp×Ip×cos φ | Power (3 phases): P = √3 Vl×Il×cos φ or P = √3 Vp×Ip×cos φ |
What is power write SI unit of it?
In the International System of Units (SI), the unit of power is the watt (W), which is equal to one joule per second.
How do you calculate total energy SHM?
At the mean position, the velocity of the particle in S.H.M. is maximum and displacement is minimum, that is, x=0. Therefore, P.E. =1/2 K x2 = 0 and K.E. = 1/2 k ( a2 – x2) = 1/2 k ( a2 – o2) = 1/2 ka2. Thus, the total energy in simple harmonic motion is purely kinetic.
How do you find the total energy of a pendulum?
The kinetic energy would be KE= ½mv2,where m is the mass of the pendulum, and v is the speed of the pendulum. At its highest point (Point A) the pendulum is momentarily motionless. All of the energy in the pendulum is gravitational potential energy and there is no kinetic energy.