# Posts by Vincy

Total # Posts: 9

**Dynamics**

A curve along the highway is to be designed for cars moving at 100km/hr. Find the angle of banking if the radius of the curve is 200m

**Dynamics of rigid bodies**

A conical pendulum consists of a 200g body at the end of a 40cm long string making 10degrees with the vertical Find a) Velocity of the body b) Tension in the string

**Dynamics of rigid bodies**

An airplane having a mass of 3000kg performs a vertical loop to loop maneuver at 400km/hr. What is the radius of the largest circular loop possible?

**Dynamics of rigid bodies**

A body of mass 300g is whirled in a horizontal circle by means of a 60cm long cord. If the cord can sustain a tension of 400N before, find the max. number of revolution per minute which the body can have

**Dynamics of rigid bodies**

A 20 kg body moving at 30m/s is to be stopped by a constant retarding force of 100N. What is the impulse due to the force? How long must the force be applied?

**Dynamics of rigid bodies**

a 500g ball traveling with a velocity of 5m/s strikes a vertical wall rebounds with a velocity of 4m/s Find a) change in pressure of the ball b) Joule of the collision

**Dynamics**

A motion of a particle is given by the relationship a=6t. If s=8m and v=4m/s when t=1sec determine: a) v-s relationship b) s-t relationship s is distance V is velocity T is time

**econ**

Suppose the production function for widgets is given by: Q = KL - 0.8K^2 - 0.2L^2 where Q represents the quantity of widgets produced, K represents the annual capital input and L represents annual labor input. (a) For K = 10, what is the average productivity of labor equal to...

**Economics**

A firm uses only one variable input and faces the following Average Cost function: AC = Q^2 - 15Q + 48 Calculate the output level (Q) at which diminishing returns set in.