Two cars are moving towards an intersection. One car is 150 meters north of the intersection and moving towards the intersection at 20 m/s, while the other is 180 meters west of the intersection and moving towards the intersection at 16 m/s. How rapidly are the cars approaching each other 4 seconds later?

A treasure hunter follows a map moving 25 km [N], 37 km [W 37 degrees S], 63 km [E 65 degrees S] and finally 15 km [N 17 degrees E]. If his average for the entire trip was 45 km/hr, calculate: a. The total time for the trip; and b. The average velocity of the trip

An object's position in the  as a function of time obeys the equation;  x(t) = 14.2/t2.17 + 5.1t3 where all constants have proper SI Units. What is the speed of the object in the x direction at t = 1.93 seconds?

A spaceship is traveling at a velocity of v0=(47.5m/s)i^ when its rockets fire, giving it an acceleration of a=(2.22m/s2)i^ + (5.67m/s2)j^   How fast, in meters per second, is the rocket moving 4.79s after the rockets fire?

At an air show, a jet plane has velocity components vx =695km/h and vy  =415km/h  at time 4.35 s and vx =938km/h and vy =365km/h at time 7.52 s.   Please answer A,B,C,D Thank you.

When they are apart by 425m, the famous twins Isaac and Albert Neuman begin approaching each other. Isaac is riding a bicycle at a speed of 12.7 m/s and Albert is running at a speed of 3.8 m/s. How long does it take for them to meet, and how far will each have traveled?

A cannonball is fired at 171 (m/s), straight up in the air, by accident. Quickly realizing the error, the commanding officer orders the gunners to fire another cannonball straight up to hit the one coming down. In order to be safe, the two cannon balls must explode at a given hight of 636 (m). What is the maximum time (in seconds) the second cannonball can be fired after the first, such that the two cannaballs collide, exploding safely above the regiment? (s) How fast (velocity) will the first cannon ball be traveling just before the collision? (m/s) How fast (velocity) will the second cannon ball be traveling just before the collision? (m/s)

An object travels 146 m due east when it turns around and returns to its starting position. The entire trip takes 69.0 seconds. a) What is the magnitude of the displacement of the object? 73.0 m 146 m 292 m 0 m b) What is the magnitude of the average velocity of the object? 2.12 m/s 0 m/s 1.06 m/s 4.23 m/s

Two students are on a balcony 19.5 m above the street. One student throws a ball vertically downward at 16.6 m/s; at the same instant the other student throws a ball vertically upward at the same speed. The second ball just misses the balcony on the way down.  (a) What is the difference in their time in air? (b) What is the velocity of each ball as it strikes the ground?  (c) How far apart are the balls 0.900 s after they are thrown?

A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.5 m long. The bowler hears the sound of the ball hitting the pins 2.61 s after the ball is released from his hands. What is the speed of the ball (in m/s), assuming the speed of sound is 340m/s?