Question

A rock with mass m = 2.60 kg falls from rest in a viscous medium. The...

A rock with mass m = 2.60 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 19.8 N (a combination of gravity and the buoyant force exerted by the medium) and by a fluid resistance force f=kv, where v is the speed in m/s and k = 2.69 N×s/m

a)Find the initial acceleration a0.

b) Find the acceleration when the speed is 3.50 m/s .

c)Find the speed when the acceleration equals 0.1a0.

d)Find the terminal speed vt (the maximum speed, when the fluid resistance is in euqlibrium with the weight and buoyant force).

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

still any doubts feel free to ask at least before giving downvote hope you understand my concerns

pleaselike

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A small rock moves in water, and the force exerted on it by the water is...
A small rock moves in water, and the force exerted on it by the water is given by equation f=kvf=kv. The terminal speed of the rock is measured and found to be 1.8 m/sm/s . The rock is projected upward at an initial speed of 6.6 m/sm/s . You can ignore the buoyancy force on the rock. A)In the absence of fluid resistance, how high will the rock rise? B)In the absence of fluid resistance, how long will it take...
A small rock moves in water, and the force exerted on it by the water is...
A small rock moves in water, and the force exerted on it by the water is given by equation f=kv f=kv . The terminal speed of the rock is measured and found to be 2.2 m/s m/s . The rock is projected upward at an initial speed of 5.7 m/s m/s You can ignore the buoyancy force on the rock
A 2.5 kg rock is released from rest at the surface of a pond 1.8 m...
A 2.5 kg rock is released from rest at the surface of a pond 1.8 m deep. As the rock falls, a constant upward force of 4.0 N is exerted on it by water resistance. Let y=0 be at the bottom of the pond. A.) Calculate the nonconservative work, Wnc, done by water resistance on the rock, the gravitational potential energy of the system, U, the kinetic energy of the rock, K, and the total mechanical energy of the system,...
A 2.1 kg rock is released from rest at the surface of a pond 1.8 m...
A 2.1 kg rock is released from rest at the surface of a pond 1.8 m deep. As the rock falls, a constant upward force of 4.9 N is exerted on it by water resistance. Let y=0 be at the bottom of the pond. Part A Calculate the nonconservative work, Wnc , done by water resistance on the rock, the gravitational potential energy of the system, U , the kinetic energy of the rock, K , and the total mechanical...
A 2.5 kg rock is released from rest at the surface of a pond 1.8 m...
A 2.5 kg rock is released from rest at the surface of a pond 1.8 m deep. As the rock falls, a constant upward force of 4.4 N is exerted on it by water resistance. Let y=0 be at the bottom of the pond. Part A Calculate the nonconservative work, Wnc, done by water resistance on the rock, the gravitational potential energy of the system, U, the kinetic energy of the rock, K, and the total mechanical energy of the...
A student of mass 65.4 kg, starting at rest, slides down a slide 18.2 m long,...
A student of mass 65.4 kg, starting at rest, slides down a slide 18.2 m long, tilted at an angle of 32.1° with respect to the horizontal. If the coefficient of kinetic friction between the student and the slide is 0.133, find the force of kinetic friction, the acceleration, and the speed she is traveling when she reaches the bottom of the slide. (Enter the magnitudes.) HINT (a) the force of kinetic friction (in N) N (b) the acceleration (in...
Question 1: A rock of mass 0.453 kg falls from rest from a height of 23.0...
Question 1: A rock of mass 0.453 kg falls from rest from a height of 23.0 m into a pail containing 0.335 kg of water. The rock and water have the same initial temperature. The specific heat capacity of the rock is 1920 J/kg C°. Ignore the heat absorbed by the pail itself, and determine the rise in temperature of the rock and water in Celsius degrees. Question 2: A 33.7-kg block of ice at 0 °C is sliding on...
A skydiver of mass 84.0 kg jumps from a slow-moving aircraft and reaches a terminal speed...
A skydiver of mass 84.0 kg jumps from a slow-moving aircraft and reaches a terminal speed of 52.6 m/s. (a) What is her acceleration when her speed is 30.0 m/s? magnitude    m/s2 direction (b) What is the drag force on the skydiver when her speed is 52.6 m/s? magnitude    N direction (c) What is the drag force on the skydiver when her speed is 30.0 m/s? magnitude N direction
3. A mass of 5 kg stretches a spring 10 cm. The mass is acted on...
3. A mass of 5 kg stretches a spring 10 cm. The mass is acted on by an external force of 10 sin(t/2) N (newtons) and moves in a medium that imparts a viscous force of 2 N when the speed of the mass is 4 cm/s. If the mass is set in motion from its equilibrium position with an initial velocity of 3 cm/s, formulate the initial value problem describing the motion of the mass. Then (a) Find the...
An object with a mass m = 3.5 kg is released from rest at the top...
An object with a mass m = 3.5 kg is released from rest at the top of the ramp. The length of the ramp is 4 m. The object slides down the ramp reaching a speed of 1.8 m/s at the bottom. (a) How much time (in sec) does it take the object to reach the bottom of the ramp? (use kinematics equations) (b) What is the acceleration of the object (in m/s2 )? (use kinematics equations) (c) If the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT