42. Car A drives East at a constant 25 miles per hour. At timet0 Car B...
A car drives a distance of .994569 miles going 20 miles per hour. How long did it take the car to travel this distance in seconds?
James drives 10 miles east with average speed of 45 miles per hour from his home to Costco. He takes the same route home with an average speed of 60 miles per hour. What is his total displacement (in miles)?
1. A car travels 30 miles north, then 10 miles east. The displacement vector is X miles north, Y miles east. A) What is X? B) What is Y? 2. A car travels 30 miles north, then 10 miles east, then 20 miles west, then 2 miles south. The displacement vector is X miles north, Y miles east. A) What is X? B) What is Y? (beware of signs) 3. A car travels 30 miles northwest. The displacement vector is...
The wind velocity v, is 40 miles per hour from east to west while an air speed v, of 100 miles per hour due north airplane travels with (a) Find the speed of the airplane relative to the ground, vi + v2. (b) If the plane starts at (1,3), what is it's position after 90 minutes? The wind velocity v, is 40 miles per hour from east to west while an air speed v, of 100 miles per hour due...
Two cars are driving at the same constant speed on a straight road, with car 1 in front of car 2. Car 1 suddenly starts to brake with constant acceleration and stops in 10 m. At the instant car 1 comes to a stop, car 2 begins to brake with the same acceleration. It comes to a halt just as it reaches the back of car 1. What was the separation between the cars before they starting braking?
A car is travelling at exactly 9 miles per hour and accelerates at a constant rate to exactly 54 miles per hour. This acceleration takes exactly 16.8 seconds. What is the rate of acceleration, in miles per hour2?
You are driving on a straight road at exactly 21.8 miles per hour when you see a child run out in front of your car, chasing a ball. You push the brakes hard, which results in an acceleration of exactly -36000 miles/hour2. The child freezes in panic and you cannot swerve to avoid the child because there are cars parked on both sides of the street. How many feet does your car travel before it comes to a complete stop?...
You are driving your car at a constant speed of 60 miles per hour. What is the speed (in miles per hour) of a point at the very top of your tire? The radius of your tires is 1 ft.
At time, t=0s, car A is at rest at the origin of the coordinate system and car B is moving due east at a constant velocity of 20.0m/s. When car B is 50.0m west of car A, car A starts to move at a constant acceleration of 2.00m/s2 due east. how far from the origin has car a moved when car B overtakes car A. use graph of position vs time for both cars.
You are driving your car at a constant speed of 60 miles per hour. What is the speed (in miles per hour) of a point at the very top of your tire? The radius of your tires is 1 ft. what is the speed (in miles per hour) of a point at the very bottom of your tire in contact with the road?