1つ7 3. An object undergoes motion in 2 dimensions under a constant acceleration of "-2.50 m/s at an angle of 50.0° with respect to the + x direction. It also has an initial velocity of vi = 7.00 m/s at an angle of 10,0° The object begins at the coordinates (0, 0). a) What are the coordinates of the object at t = 7.00 s? Want Cx, y) at t =?4 4tzテメ0チ=XT vse this Con Vxi = \V;l cos v +ハ Ay=lalsin Ga b) What is its total velocity vector of the object as a magnitude and direction at t = 7.00 s? a) Ov= Ton

In the sport of billiards, event organizers often remove one of the rails on a pool table to allow players to measure the speed of their break shots (the opening shot of a game in which the player strikes a ball with his pool cue). V. o h d The top of a pool table is a height h = 3.25 ft from the floor. If a player's ball lands a distance d 14.75 ft from the table edge, what is her break shot speed vo? 12.3 Vo = mph Incorrect At what speed v did her pool ball hit the ground? 4.21 mph = Incorrect

Using the triangle method, determine the displacement of traveling: 100 km @ 30° SoW and then 40 km @ 70° EoS. A) 114 km @ 15.6° SoW B) 80.4 km @ 37.6° WoS C) 80.4 km @ 22.4° WoS D) 80.4 km @ 72.4° SoW

1. An ant travels 2.78 cm [W] and then turns and travels 6.25 cm [S 40° E]. What is the ant's total displacement? ™T [ans: 4.94 cm [E 76° S]]

The maximum height H of an object launched with initial velocity vo at an angle 0 is given by the following formula. v sin'e H = 2g 5n If g = 9.8 m/s“, find the height of an object when vo = 95 m/s and 0 = rad. 11 Do not round any intermediate computations. Round your answer to the nearest hundredth.

42) A man wants to cross a SOD m wide. His rowing speed (relative to river 3000 m/h. The river flows with a of the water ) is the man's ualking peed Aowing & walking) he should take to get the point disctly opposite his star ting point in the shortest time ? b). How long does it take?" speed on shore is 5000 m/h. a). find the path (combined 2000 m/h. If

need help on incorrect answers.

A boat traveling across a river has a resultant velocity of 10 km/h and travels 34 degrees with respect to the shore.  A) What is the boats velocity in m/s?     B) What is the velocity of the river in m/s?

Same question asking two different things

One of the popular routes out of Toronto is towards Tokyo, Japan. An airplane model used by Air Canada for this 10345 km flight is the Boeing 787-9. It has capacity for 298 passengers. When every seat is occupied, the passengers and their luggage weigh approximately 3.41x104 kg. Approximately 6.03x104 kg of fuel has to be consumed during this one-way flight. Assuming the every seat is occupied, how much fuel in kilograms is required per passenger for the entire one-way flight? (do not include units, just the number of kilograms) Answer: Check