Physics, 05.12.2019 12:31 duyphan

When at the highest point on the ferris wheel, jesse is 30 m off the ground. the ferris wheel spins at 5 m/s at top speed. how much kinetic energy does jesse who has a mass of 50 kg have at the highest point of the circle

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Kinetic energy (KE) is calculated through the equation,
KE = 0.5 mv²
where m and v are mass and velocity, respectively. Substituting the known values from the given above,
KE = 0.5(50 kg)(5 m/s)² = 625 J
Thus, the kinetic energy of Jesse at the highest point is equal to 625 J.

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falling water hydro = water .. spectcular places these plants are

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force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

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When at the highest point on the ferris wheel, jesse is 30 m off the ground. the ferris wheel spins...

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