Physics, 25.01.2020 05:31 juliannabartra

An object of mass 0.67 kg is attached to a spring with spring constant 15 n/m. if the object is pulled 14 cm from the equilibrium position and released.
what is the maximum speed of the object?

Answers: 3

Show answers

Answers

Answer from: loganharper992

The maximum speed of the object is 0.662 m/s.

Explanation:

Given that,

Mass of the object, m = 0.67 kg

Spring constant of the spring, k = 15 N/m

The spring is pulled 14 cm or 0.14 m from the equilibrium position and released.

To find,

The maximum speed of the object.

Solution,

The maximum speed of the object is given by :

$v=A\omega$ ........(1)

Where

$\omega=\sqrt{\dfrac{k}{m}}$

$\omega=\sqrt{\dfrac{15}{0.67}}$

$\omega=4.73\ rad/s$

So,

$v=0.14\times 4.73$

v = 0.662 m/s

So, the maximum speed of the object is 0.662 m/s.

Answer from: Quest

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.

Answer from: Quest

250✖️100 to get you answer

Other questions on the subject: Physics

Physics, 21.06.2019 17:00, jordynsmith02

Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly

Answers: 1

continue

Physics, 22.06.2019 00:00, destinycasillas

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Answers: 2

continue

Physics, 22.06.2019 10:30, jdkrisdaimcc11

What are two different ways you could find the value of a? explain these methods.

Answers: 2

continue

Physics, 22.06.2019 19:30, Bg88860709

Aspacecraft that renters the earth’s atmosphere drastically slows down. the amount of kinetic energy the spacecraft has as it reenters the earths atmosphere

Answers: 2

continue

You know the right answer?

An object of mass 0.67 kg is attached to a spring with spring constant 15 n/m. if the object is pull...