Q: A car driving at a constant speed of 66 mi/h travels 54 miles. How many hours did this take
A: Given: speed v=66 mi/hr distance d=54 miles To find: time t=?
Q: The speed of an object is 4 m/s. How far, would it travel in 2 hours?
A: The expression for find distance is d=vt
Q: An object moves the first 36 km in 40 minand the remaining 24 km in 20 min. Find the average speed…
A: According to given, Distance (D1)= 36km Time(T1)= 40min = 40/60 hours Speed (v1)= D1/T1 = 36/(40/60)…
Q: Object A travels 5 meters and object B travels 10 meters. Which had a faster velocity?
A:
Q: If Seneca decides to walk across town to a store that is .95 kilometers away and she has only 25…
A: Given data : Time = t Distance = d To find :…
Q: (b) Deandre is hiking toward his campsite at a constant pace. A few miles from the campsite, he sees…
A: Solution: as given that Deandre is hiking for capasite with constant pace. he takes the different…
Q: A motorbike crosses the starting line on a race track travelling at 84.2 ms and accelerates at 2.6…
A: Given a race track travelling at 84.2ms accelerates at 2.6 ms for 0.8 seconds We have to find the…
Q: If Seneca decides to walk across town to a store that is. 75 kilometers away and she has only 24…
A: Given data : Distance = d Time = t To find…
Q: An airplane flying into a headwind travels the 1920-mile flying distance between two cities in 3…
A:
Q: An object is moving at a speed of 850 miles per hour. Express this speed in meters per minute. Round…
A: This problem is based on unit conversion. The given speed of the object is given in the unit of…
Q: What is the displacement of a runner who goes on a 5 kilometer run and ends at their starting…
A: Given :- runner goes on a 5 kilometer run and ends at their starting point .
Q: 1110 km, 10- hour flight was travelled at 2 speeds. For the first part of the trip. The average…
A:
Q: From a ravine that is 141 meters high, a stone is dropped. How long will it take to fall to the…
A:
Q: A distance of 2495 km was travelled by air plane at two speeds. From the start to a certaian time of…
A: Solution- Let plane travel distance d1 with speed v1 in time t1.(start to a certain time of flight)…
Q: A surface vessel 156 m long is to move at the rate of 6.38 m/s. At what velocity should a…
A:
Q: If a car is traveling at 45 mi/h, determine its speed in meters per second. Round to 3 significant…
A:
Q: You drive from town A to city B, and the odometer on your car says you have traveled 105 km. You…
A: As odometer measured the distance so it is accurate but it is not precise. Option - b
Q: A boy cyclist and a girl cyclist are 10 miles apart and pedaling toward each other. The boy's rate…
A: Given: Distance between boy and girl (d) = 10 miles. Velocity of boy (vb) = 6 mph. Velocity of girl…
Q: A yacht is 20 m long. Express this length in feet.
A: Given data: Length of a yacht (L) = 20 m Required: Length in feet
Q: Amereruns 1/10 miles in 2/3 mins.What is his speed in miles per minute.
A: Given data: Distance (d) = 1/10 miles Time (t) = 2/3 minutes Required: Speed in miles per minute
Q: A train is traveling 20 kilometers per hour. It is .5 kilometers behind you. You want to beat the…
A: The speed of train is 20 km/hr Distance between you and train is 5 km Distance between you and…
Q: how fast would hail be wothout air resistance
A: If there is no air resistance, the only force acting upon the hails would be the gravitational…
Q: A ball is dropped from a rooftop of a building and falls for two seconds. The acceleration of…
A: Given,
Q: A car travels a distance of 100 km in 2.00 hours. It then travels an additional distance of 60.0 km…
A: Given data: Distance (d1) = 100 km Time (t) = 2.00 h Additional distance (d2) = 60.0 km Time (t) =…
Q: A car is moving at a speed of 6 meters/Second In 5 Seconds, he increases its speed to 16…
A: We know thatv=u+atWherev=final velocityu=initial velocitya=accelerationt=time taken
Q: Nerve impulses in the human body travel the speed of about 100 M Dash S. A 1.6 M tall man…
A: Given that, speed = 100 m/sHeight of tall man = 1.6 mWe know that,distance = velocity x timeSo,…
Q: IS min tu to gu takes A train teCaving Stathun 7 gu 30 miles eust, than. min north and reuch Stanon…
A: Distance traveled to east = 30 miles time taken (t1) = 15 min Distance traveled to north = 60 miles…
Q: Is the average swimmer taller than the average volleyball player?
A: Average tallest players are basketball players and then comes volleyball players .
Q: Find the value of speed of car if distance covered by car is 12 km in 0.5 hr
A: Distance covered, d=12 km Time taken, t=0.5 hour
Q: a falling stone takes 0.31s to travel past a window 2.2 m tall. What height above the top of the…
A: Using kinematic equation, the expression for find initial velocity is x=ut+12at2u=x-12at2t…
Q: Jane drives at an average speed of 45 mph on a journey of 135 miles. How long does the journey take?…
A:
Q: two trucks leave a warehouse at the same time. One travels do North and the average speed of 58 mph…
A:
Q: Superhighway in Canada have speed limits of 100 km/h. How does this compare with the 65 min/h speed…
A:
Q: A private jet can fly 1780.8 miles against a 23-mph headwind in the same amount of time it can fly…
A:
Q: How fast did Mr. H walk during the last 3.0 seconds
A: The speed during last 3 seconds can be found as,
Q: where does the 0.75 come from isint it supposed to be 0.5?
A: Solution: Given: Note: Here, r1 is the distance between q1 and Z and its value is 50 cm + 25 cm = 75…
Q: Speed of a train is 20 meters per second. It can cross a pole in 10 seconds. What is the length of…
A:
Q: Which of the following would be closest to the height of a standard door frame? O 20 m O 0.02 m O…
A: Since average height of a man is 1.7 meter. So height of standard door is just greater than and…
Q: Kylan, championship swimmer, is training for the Tokyc Olympics. To do so, he swims in a stream that…
A: Given, speed of the stream(vs) = 3mph distance traveled against the current = 4miles distatnce…
Q: An electric train moving at 20km/h accelerates to a speed of 30km/h in 20 second.find the distance…
A: Initial velocity of train= 20km/h = 5.555 m/s Final velocity of train = 30km/h =8.333m/s Time = 20s
Q: the distance between an object falls from rest varies directly as the square of time. if an object…
A: The relationship between displacement and time is S = kt² where S represents displacement, t is…
Q: Choose the BEST answer to the following: The average speed of a gazelle traveling a distance of 2 km…
A: The average speed of gazelle is,
Q: An object is traveling such that it has a mome (a) speed of the object in meters per secon m/s (b)…
A:
Q: A train is travelling with a velocity of 90 km/h. The brakes are applied at a rate of -0.4 m/s?.…
A:
Please choose correct answer.
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- Explain why, when defining the length of a rod, it is necessary to specify that the positions of the ends of the rod are to be measured simultaneously.(a) Use the distance and velocity data in Figure 3.64 to find the rate of expansion as a function of distance. (b) If you extrapolate back in time, how long ago would all of the galaxies have been at approximately the same position? The two parts of this problem give you some idea of how the Hubble constant for universal expansion and the time back to the Big Bang are determined, respectively. Figure 3.64 Five galaxies on a straight line, showing their distances and velocities relative to the Milky Way (MW) Galaxy. The distances are in millions of light years (Mly), where a light year is the distance light travels in one year. The velocities are nearly proportional to the distances. The sizes of the galaxies are greatly exaggerated; an average galaxy is about 0.1 MlY across.An athlete crosses a 25-m-wide river by swimming perpendicular to the water current at a speed of 0.5 m/s relative to the water. He reaches the opposite side at a distance 40 m downstream from his starting point. How fast is the water in the river flowing with respect to the ground? What is the speed of the swimmer with respect to a friend at rest on the ground?
- The New Horizons probe that passed by Pluto during July 2015 is one of the fastest spacecraft ever assembled. It was moving at about 14 km/s when it went by Pluto. If it maintained this speed, how long would it take New Horizons to reach the nearest star, Proxima Centauri, which is about 4.3 light-years away? (Note: It isn’t headed in that direction, but you can pretend that it is.)Describe the shape of the world line on a space-time diagram of (a) an object that remains at rest at a specific position along the x-axis; (b) an object that moves at constant velocity u in the x-direction; (c) an object that begins at rest and accelerates at a constant rate of in the positive x-direction.An athlete crosses a 28 meters wide river by swimming perpendicular to the water current at a speed of 1.1 m/s relative to the water. He reaches the opposite side at a distance of 42 meters downstream from his starting point. w = 28md = 42m vs = 1.1m/s What is the speed of the swimmer with respect to a freind at rest on the ground in m/s?
- You are on a train that is traveling at 3.0m/s along a level straight track. Very near and parallel to the track is a wall that slopes upward at a 12degree angle with the horizontal. As you face the window (0.990m high, 2.45m wide) in your compartment, the train is moving to the left. The top edge of the wall first appears at window corner A and eventually disappears at window corner B. How much time passes between appearance and disappearance of the upper edge of the wall?Two very hungry (and competitive) pre-med students suddenly see a parked ice cream truck that is that is down to its last ice cream cone. The truck is a distance of D meters away from the nearest student, who runs toward the truck at 2.5 m/s, and the second student (who was a track star in high school) runs toward it faster at 5.7 m/s but the second student is 10.0 meters farther away (to where he has to run D+10.0 m). What is the maximum possible value of D for the two students to reach the ice cream truck at the same time?A battleship simultaneously fires two shells at enemy ships, as shown above. To hit the nearby ship (A), it launches a shell from one gun with a speed of 55.0 m/s at an angle of 72.0o above the horizon. To hit the far ship (B), it launches a shell from another gun with a speed of 92.0 m/s at an angle of 31.0o above the horizon. How much time is there between when each ship is hit?
- The Moon is about 3.8 ✕ 108 m from Earth. Traveling at the speed of light, 3.0 ✕ 108 m/s, how long does it take a laser beam to go from Earth to the Moon and back again (in s)? The same physics was responsible for the noticeable delay in communications signals between lunar astronauts and controllers at the Houston Space Flight Center.A passenger in a train moving at 30 m/s passes a personstanding on a station platform at t=t'=0. Twenty secondsafter the train passes, the person on the platform determines thata bird flying along the tracks in the same direction as the trainis 800m away. Five seconds later, the bird is 850maway. Assume a constant velocity for all involved. a) Draw a coordinate system indicating the motion of bird andtrain in the grame of the observer on the platform b) What are the coordinates of the bird as determined by thepassenger? c) Find the velocity of the bird as determined by the observeron the platform and the train passenger. Thanks! Will rate highestYou are traveling in a car going at a constant speed of 100 km/hr down a long, straighthighway. You pass another car going in the same direction which is traveling at a constantspeed of 80 km/hr. As measured from your car’s reference frame this other car is travelingat -20 km/hr. What is the acceleration of your car as measured from the other car’s referenceframe? What is the acceleration of the other car as measured from your car’s referenceframe? Explain/substantiate your answer.