Determine speed of the ball when it hits the bottom of lake

Assignment Help Civil Engineering

Reference no: EM13315104

A ball is dropped from a boat so that it strikes the surface of a lake with a speed of 19.5ft/s. While in the water the ball experiences an acceleration of a = 10 - 0.8v, where a and v are expressed in ft/s^2 and ft/s, respectively. Knowing the ball takes 3 s to reach the borrom of the lake, determine (a) the depth of the lake, (b) the speed of the ball when it hits the bottom of the lake.

Reference no: EM13315104

Questions Cloud

What is the adjudicatory hearing and the procedures : What role does plea bargaining play in juvenile court proceedings? What is your evaluation of plea bargaining? Do you think the juvenile court should be changed? Why? How? What is the adjudicatory hearing and the procedures followed in it?

Find the change in the gravitational potentialenergy of cord : A uniform cord of length 4.0 cm and mass 26 g is initially stuck to a ceiling. What is the change in the gravitational potential energy of the cord

What pressure difference is needed to maintain a flow rate : Engine oil (?=0.20Pa?s) passes through a 2.60mm diameter tube in a prototype engine. What pressure difference is needed to maintain a flow rate of 6.5mL/min

Find the smallest number you could hook together : Suppose you want a capacitor bank with a total capacitance of 1.450 F and you possess numerous 2.50 mF capacitors. What is the smallest number you could hook together to achieve your goal

Determine speed of the ball when it hits the bottom of lake : A ball is dropped from a boat so that it strikes the surface of a lake with a speed of 19.5ft/s. While in the water the ball experiences an acceleration of a = 10 - 0.8v, where a and v are expressed in ft/s^2 and ft/s, respectively

Role of motivation-ability and environment led to peformance : Describe an instance in which you have done an exceptionally good job, either at work or at school. Be specific as to how the roles of Motivation, Ability, and Environment led to your performance.

The current asset section of guardian consultant : The current asset section of Guardian Consultant's balance sheet consists of cash, accounts receivable, and prepaid expenses. The 2011 balance sheet reported the following: cash, $1,300,000; prepaid expenses, $360,000; noncurrent assets, $2,400..

Determine the tradeoff between the cost and the energy head : Two materials (wrought iron, ks = 0.046 mm, and galvanized iron, ks = 0.15 mm) are being considered for a new pipeline. The expected discharge is 0.15 m3/s. Both the head loss and cost are sought for.

What is the volume rate of flow : A 5.6cm diameter horizontal pipe gradually narrows to 2.9cm. When water flows through this pipe at a certain rate, What is the volume rate of flow

User Account

All Pages