A man walks at 4 ft/a on the roof of a train that is traveling at 40 ft/s. The train is reducing its speed at rate of 10 ft/s. At the instant shown, a car travels at 50 ft/s along a circular curve as shown. It is reducing its speed at a rate of 25 ft/s. Determine the velocity and acceleration of the man as seen by the driver of the car. Verain = 40 ft/s atrain = 10 ft/s2 %3D Vmanjtrain = 4 ft/s Vear = 50 ft/s ar.car = 25 ft/s? %3D 30 100 ft

A man walks at 4 ft/a on the roof of a train that is traveling at 40 ft/s. The train is reducing its speed at rate of 10 ft/s. At the instant shown, a car travels at 50 ft/s along a circular curve as shown. It is reducing its speed at a rate of 25 ft/s. Determine the velocity and acceleration of the man as seen by the driver of the car. Verain = 40 ft/s atrain = 10 ft/s2 %3D Vmanjtrain = 4 ft/s Vear = 50 ft/s ar.car = 25 ft/s? %3D 30 100 ft

Name: A man walks at 4 ft/s on the roof of a train that is traveling at 40
Uploaded: 2024-03-20T06:57:47.000Z
Channel: Bartleby
Description: A man walks at 4 ft/s on the roof of a train that is traveling at 40 ft/s. The train is reducing its speed at rate of 10 ft/s. At the instant shown, a car travels at50 ft/s along a circular curve as shown. It is reducing its speed at a rate of 25 ft

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter2: Motion

Section: Chapter Questions

Problem 10E: A race car traveling northward on a straight, level track at a constant speed travels 0.750 km in...

See similar textbooks

Similar questions

a driver sees a deer in front of his car about 100.0 meters in front of him. the driver was traveling 50.0 m/s before applying the brakes and coming to rest right where the deer was. acceleration was -12.5 m/s2. calculate the time it took for the car to stop.
A seagull flies at a velocity of 12.5 m/s relative to the air straight into the wind. vSA = 12.5 m/st = 16 mind = 5.8 km 1. If it takes the bird 16 min to travel 5.8 km relative to the Earth, what is the velocity of the wind, in meters per second, relative to the Earth? Take the direction of travel of the seagull to be positive. 2. If the bird turns around and flies with the wind, how long, in minutes, will it take to return 5.8 km?
A seagull flies at a velocity of 8.5 m/s relative to the air straight into the wind. vSA = 8.5 m/st = 23 mind = 5.8 km A) If it takes the bird 23 min to travel 5.8 km relative to the Earth, what is the velocity of the wind, in meters per second, relative to the Earth? Take the direction of travel of the seagull to be positive. B) If the bird turns around and flies with the wind, how long, in minutes, will it take to return 5.8 km?
3. A ball rolls on an inclined plane with position fincion s(t)-2r+3 +5 (where position is measured in centimeters and time is measured in seconds). Find the ball's velocity at time2 seconds. When is the velocity of the ball 30 centimeters per second?
A golf ball was hit and follows a trajectory path. It travels 28m/s upon hitting at 400 with respect to horizontal ground. 1. Calculate the maximum height that the ball will reach above the ground. 2. Calculate the range of the ball upon hitting back to ground. 3. Calculate the total time that the ball is in the air.
A motorcycle speed increases from 15 kilometres per hour to 60 kilometres per hour in 20 seconds. Solve average speed, distance travelled and acceleration. Answer in mks.
A seagull flies at a velocity of 9.5 m/s relative to the air straight into the wind. vSA = 9.5 m/st = 24 mind = 5.6 km a)If it takes the bird 24 min to travel 5.6 km relative to the Earth, what is the velocity of the wind, in meters per second, relative to the Earth? Take the direction of travel of the seagull to be positive. b) If the bird turns around and flies with the wind, how long, in minutes, will it take to return 5.6 km?
Three vectors are Magnitudes are arbitrary units. Determine the sum of the three vectors as shown at right. a) graphical sketch using tip-to- tail method. a resultant vector calculated quantitatively and reported in terms of components a resultant vector calculated quantitatively and reported in terms. of magnitude direction. + 9 -X5- TU C=30 und Let -у aw Diagram is not to scale A 22.5° 45 A = 41. units x B= 21 units A 41 units @ 22.5° Noft 21 units @ 45° S of E 2 30 units @ due w B
1 a. A ball is projected with a horizontal velocity of 1.1 ms-1 from point A at the edge of shown in Fig. 1.2. table. ball, 1.1 ms-1 -path of ball horizontal ground 0.43m The ball lands at point B from the base of the table. Calculate i. Time table taken for ball to fall from A to B ii. Determine the height of the table ii. If the mass of the ball is increases and ignoring air resistance, compare the time taken of the second ball with the time taken for that in question (i) and explain your answer.
Please answer the following question(s): 1. The speed of a boat in still water is vá. A river flows with a speed of v₁. The boat travels distance of 19 miles downstream in a river in 1 hour. However, the return journey takes 2 hours. Calculate the vand v₁. Hint: Velocity=displacement/time. Displacement can be positive of neagtive depending on the direction. You will first need to set up the equations by taking into account the resultant velocity of the boat in flowing water. Consider the direction the river is flowing to be positive. Set up two equations, one for the downstream journey and one for the upstream journey, in terms of "v" and "v": Do v" and "v, add or substract downstream to give the resultant downstream velocity? Do v" and "v, add or substract upstream togive the resultant upstream velocity? Use the upstream direction as negative. The resultant upstream velocity should be negative. vb vb Downstream positive Vr Upstream negative Vr
3. at t=0 a truck is traveling cast at S: 76 km/h at an intersection of ahead, a car is traveling north at constant speed of v= 54 km /h a constant speed of d= 39.9km a) Write an expression for the distance r b/w the truck and the car as a function of time. Use the variables from the problem r=√ (st)² + (divt) ² y =
The observation deck of tall skyscraper 263.8 m above the street. Determine the time required for a penny to free fall from the deck to the street below. Round to 1 decimal place and don't include units.