Two carts, a and b, are connected by a rope 39 ft long that passes over a pulley p. the point q is on the floor h = 12 ft directly beneath p and between the carts. cart a is being pulled away from q at a speed of 3 ft/s. how fast is cart b moving toward q at the instant when cart a is 5 ft from q? (round your answer to two decimal places.)

Question

18-10-2017
Physics

contestada

Two carts, a and b, are connected by a rope 39 ft long that passes over a pulley p. the point q is on the floor h = 12 ft directly beneath p and between the carts. cart a is being pulled away from q at a speed of 3 ft/s. how fast is cart b moving toward q at the instant when cart a is 5 ft from q? (round your answer to two decimal places.)

Respuesta :

Otras preguntas

An herbicide contains only C, H, Cl, and N. The complete combustion of a 200.0 mg sample of the herbicide in excess oxygen produced 209.2 mL of CO2 and 122.0 mL

please show the steps - Convert the decimal 53 to an 8-bit signed and magnitude -Convert the decimal - 53 to an 8-bit signed and magnitude

What was the connection between President Wilson's Fourteen Points and Germany's surrender? The Fourteen Points were based on the terms of the surrender. The Fo

what is the slope-intercept form of the equation of the line that passes through the points (7,-5) and (3,-9)

Lynn plans to sell lemonade to raise at least $40 for the science fair. She sells each cup of lemonade for $0.70 and spends $0.23 per cup for supplies. Set up a

Auditing standards: A. outline specific rules for accounting for transactions occurring in a business enterprise for all private companies in the United States

What is the numerical ratio that is equivalent to 19.2 dB?

Excessive alcohol consumption is NOT Question 10 options: a. a factor in 6 of the top 10 causes of death. b. an important factor in accidental deaths. c. ass

The two ways that energy can be transferred are as heat or as work. TRUE FALSE

To apply parsimony to constructing a phylogenetic tree, A) choose the tree that assumes all evolutionary changes are equally probable. B) choose the tree in whi

Kalahira Kalahira · Answer 1 · 2017-10-29T00:01:39+02:00

I've added an attachment to this post to explain the problem. Two carts, A and B, are connected by a rope 39 feet long that passes over a pulley P. The point Q is on the floor h = 12 ft directly beneath P and between the carts. Cart A is being pulled away at a speed of 2.5 ft/s. How fast is cart B moving toward Q at the instant when cart A is 5 ft from Q. (round to 2 decimal places) From the problem, I know the following things: PQ = h = 12 AQ = 5 AP = 13 (by Pythagoras) APB = 39 PB = 39-13 = 26 QB = 2\sqrt{133} (by Pythagoras) (work to follow in next posting for organization)