One car travels due east at a steady 40 km/h, and a second car travels due north at a steady 40 km/h. Are their velocities equal? Yes, they are both moving in positive directions. No, they are accelerating differently. No, they have different directions. Yes, they have the same speed.

Q: An airplane in level flight travels horizontally with a constant eastward acceleration of  8.40…

A:

Q: you are driving your car along a country road ar a speed of 23.8m/s. As you come over the crest of a…

A:

Q: A car starts from rest and accelerates uniformly at 4.0 m/s2 toward the north. A second car starts…

A: Given that Initial velocity of first car u1 = 0 ( in rest) Acceleration of first car a1 = 4 m/s2…

Q: i throw a ball straight up in the air with an initial velocity of 15.0 m/s. Calculate its position…

A:

Q: If a ball is thrown straight up into the air, what is its acceleration as it moves upward? magnitude…

A:

Q: After 5.2 seconds of uniform acceleration from rest, a spacecraft reaches an altitude of 5.7 x 10 2…

A: Initial speed, U = 0 (at rest) Distance covered, S = 5.7×102 m (altitude) Time, T = 5.2 seconds…

Q: One aeroplane travels due north at 300km/h while another travels due south at 300km/h. Are their…

A: Velocity is the rate of change of displacement of an object. It is a vector quantity having both…

Q: When striking, the pike, a predatory fish, can accelerate from rest to a speed of 3.9 m/sm/s in 0.13…

A:

Q: A person takes a trip, driving with a constant speed of 99.5 km/h, except for a 22.0-min rest stop.…

A: constant speed (u) = 99.5 kmhr duration of rest (t1) = 22 min = 2260 hr = 0.367 hr Average speed of…

Q: In which one of the following situations does the car have a westward acceleration?   The car…

A: Given data:  Four different situations of the motion of car  Required: The situation in which the…

Q: Consider the following statements about the movement of an object below: I) When the acceleration…

A: The detail description of all three statements are mentioned below.

Q: You leave your house and drive to your friend's house, where you stay a while. Then you come back…

A: Given Making a round trip from home to the friend's house and then coming back.

Q: Driving down the road at a speed of 26.1 m/s, you suddenly notice a fallen tree blocking the road a…

A: Given: Initial speed of the car u=26.1 m/s distance of tree from car =86.7 m distance of the…

Q: Small frogs that are good jumpers are capable of remarkable accelerations. One species reaches a…

A:

Q: Two cars are moving in the same direction in parallel lanes along ahighway. At some instant, car A…

A: Acceleration is defined as the rate of change in velocity per unit time.

Q: An airplane in level flight travel horrizontally with a constant eastward acceleration of 7.75 m/(s…

A: The magnitude of the airplane’s displacement from its initial position after 14.0 s is 3527.0919 m .

Q: If you travel in a straight line at 50 km/h for 1 h and at 100 km/h for another hour, is your…

A: Given that, speeds, V1 = 50 km/h                                 V2 = 100 km/h…

Q: A red car and a green car, identical except for the color, move toward each other in adjacent lanes…

A: SOlution: Given that red car has a =0, as moving with constnat velocity v1 = 20 km/h meeting point x…

Q: Assume a parachutist has a terminal velocity of 100 m/s that they reach with an average acceleration…

A:

Q: A car is traveling west at 17.5 m/s when it turns due north and accelerates to 32.5 m/s, all during…

A: a is the acceleration, vi is the initial velocity, vf is the final velocity, t is the total time.…

Q: If a car is moving 90km/h and it rounds a corner,also at 90km/h. Car maintains the following? Choose…

A:

Q: A red car and a green car, identical except for the colour, move toward each other in adjacent lanes…

A:

Q: One airplane travels due north at 300 km/h while another travels due south at 300 km/h. Are their…

A:

Q: < Which of the following best compares average speed with average velocity? 2 A Average speed is…

A:

Q: If the acceleration is constant, then

A:

Q: Car A is traveling on a highway at a constant speed (VA)0 = 60 mi/h and is 380 ft from the entrance…

A: Let car A’s initial position (x0A) coincide with the origin along the x-axis. Then, car B’s initial…

Q: what is the magnitude of acceleration (assumed constant) in m/s2 and in g's (g=9.80 m/s2)

A: Given data: The distance traveled is: d = 120 m The time taken to traveled is: T = 5 sec The final…

Q: Driving down the road at a speed of 23.9 m/s, you suddenly notice a fallen tree blocking the road a…

A: Write the given values with the suitable variables. u=23.9 m/sv=0 m/sd1=82 md2=6.6 m Here, u, v, d1,…

Q: A ball rolls up a ramp, getting slower and slower before rolling back to the bottom of the ramp. At…

A:

Q: A sports car combing at a constant velocity travels 130 m in 4.9s. If it then brakes and comes to a…

A: Given:-  The distance traveled  by the sports car is d = 130 m in a time t1 =4.9 sec  Then he…

Q: At t=0, a car registers at 30 miles/hr. Forty seconds later, the car’s velocity is now at 50…

A: Given - Initial velocity of car , u = 30 miles/hr Final velocity of car , v = 50 miles/ hr Time…

Q: A hot-air balloon is drifting in level flight due east at 3.0 m/s due to a light wind. The pilot…

A: Given: The velocity is v=3 m/s. The altitude is y=20 m. The height is d=130 m. The expression for…

Q: When the man moves to the right, is his velocity positive or negative? Why? When the man moves to…

A: It depends on our choice of reference frame, if we chose the right direction to be positive, then we…

Q: 3 For each of the following journeys find (a) the initial and final positions [b] the total…

A: (a) From the graph, we can see that the initial position is 60 km and final position is 0 km.…

Q: George is driving at a constant 80.0 mi/hr (35.8 m/s) along a straight section of Route 3 North. The…

A:

Q: A car comes to a complete stop from an initial speed of 60 mi / hr in a distance of 200 ft. With the…

A: Given: Case 1: Initial speed u=60 mi/hr=601.467ft/s=88.02 ft/s, Final speed v=0 ft/s, Stopping…

Q: A particle moving along a straight line has an acceleration which varies according to position as…

A:

Q: You drive West 30.0 km at 85 km/h and then drive East another 60.0 km at 95 km/h. Your average…

A: Given that --- You drive West 30.0 km at 85 km/h and then drive East another 60.0 km at 95 km/h.…

Q: suppose that a car traveling to the west (-x direction) begins to slow down as it approaches a…

A: The acceleration is states that the rate of change of velocity, if a driver slowing down to stop at…

Q: An object moves along a straight line with an acceleration of 2 m/s2. If its initial speed is 10…

A: Given that an object moves along a straight line. acceleration (a) =2 m/s2 initial speed (u) =10 m/s…

Q: Driving down the road at a speed of 29.4 m/s, you suddenly notice a fallen tree blocking the road a…

A: Given data:  Initial velocity (Vi) = 29.4 m/s Final velocity (vf) = 0 m/s Distance of tree = 65.7 m…

Q: True or false? The maximum acceleration occurred between 0s and 2s.  The runner never moved…

A:

Q: Driving down the road at a speed of 38.2 m/s, you suddenly notice a fallen tree blocking the road a…

A:

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.