Question: A 60-kg crate is lowered from a loading dock to the floor using a rope passing over a fixed support. The rope exerts a constant

A 60-kg crate is lowered from a loading dock to the floor using a rope passing over a fixed support. The rope exerts a constant upward force on the crate of 500 N.
a. Will the crate accelerate? Explain.
b. What are the magnitude and direction of the acceleration of the crate?
c. How long will it take for the crate to reach the floor if the height of the loading dock is 1.4 m above the floor?
d. How fast is the crate traveling when it hits the floor?

Step by Step Solution

★★★★★

3.31 Rating (163 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a Force due to gravity acting in the downward direction on the crate is calculated as follows F g mg ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (2 attachments)

1575_60619c5a6a0b9_743858.pdf

180 KBs PDF File

1575_60619c5a6a0b9_743858.docx

120 KBs Word File

Students Have Also Explored These Related Physics Everyday Phenomena Questions!

A loaded tractor-trailer with a total mass of 5000 kg traveling at hits a loading dock and comes to a stop in 0.64 s. What is the magnitude of the average force exerted on the truck by the dock?

A 250-kg crate B is suspended from a cable attached to a 20-kg trolley A which rides on an inclined I-beam as shown. Knowing that at the instant shown the trolley has an acceleration n of 0.4 m/s2 up...

A worker pushes horizontally on a 35 kg crate with a force of magnitude 110 N. The coefficient of static friction between the crate and the floor is 0.37. (a) What is the value of fs,max under the...

In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using only his teeth.(a) How much work did Arfeuille do on the object? J (b) What magnitude force did he...

SECTION A Read the entire exercise (all questions) before beginning. More compensation information is available than ever before. Go to www.salary.com (Links to an external site.) or any other...

This print-out should have 17 questions. 2. 0.176855 Multiple-choice questions may continue on 3. 0.185185 the next column or page - find all choices 4. 0.217284 before answering 5. 0.321402 6....

The heaviest invertebrate is the giant squid, which is estimated to have a weight of about0.15tons spread out over its length of30feet.What is its weight in newtons? N 2. [0.17/1...

Clearly hand.wri/te and show all steps 12. A 40-kg crate is being lowered with a downward acceleration is 2.0 m/s2 by means of a rope. (a) What is the magnitude of the force exerted by the rope on...

1. A car drives through a car wash that has an open end that is X= X2 - X1 = 20 m, and an initial velocity of 20.0 m/s and decelerates at a rate of 0.100 m/S^2 as it goes through for wash. (a) How...

watch the three short clips below then answer the questions Copy and paste the three links below 1) Projectile Motion https://www.nsf.govews/mmg/mmg_disp.jsp?med_id=72205&from= 2) Newton's Second Law...

How should we interpret electron cloud representations of electron states in atoms?

1. Water is the working fluid in a Carnot vapor power cycle. Saturated liquid enters the boiler at a pressure of 10 MPa, and enters the turbine as a saturated vapor. The condenser pressure is 9 kPa....

Risk averse investors generally expect to earn a q , rate of return when they invest in a security with risk. higher; lower zero; higher lower; higher zero; no lower: lower

5. What is being held constant when the supply curve is constructed for a specific good like pizza or automobiles? Explain why the supply curve for a good slopes upward to the right.

A copper pot with a mass of 0.500 kg contains 0.170 kg of water, and both are at a temperature of 20.0C. A 0.250-kg block of iron at 85.0C is dropped into the pot. Find the final temperature of the...

If the air temperature is the same as the temperature of your skin (about 30C), your body cannot get rid of heat by transferring it to the air. In that case, it gets rid of the heat by evaporating...

In a container of negligible mass, 0.200 kg of ice at an initial temperature of 40.0 o C is mixed with a mass m of water that has an initial temperature of 80.0 o C. No heat is lost to the...

One-Way ANOVA A researcher wants to know if the time of day that a test is taken affects critical thinking ability. Factor (IV) = Time of Day DV = correct answers on a critical thinking abilities...

Not sure how to complete these different journal entries . 11. Suppose your company has one employee that earns a salary of $6,100 per month and another employee that earned hourly wages that totaled...

Reed Corp. has set the following standard direct materials and direct labor costs per unit for the product it manufactures, Direct materials (16 lbs. @ $4 per lb.) Direct labor (4 hrs. @ $15 per hr.)...