What must be the average speed to travel 250 km in 2 hr? And in m / s?

Q: A rocket is moving vertically upward with speed 370ˍm/s. What acceleration is needed todouble its…

A: The expression for the required acceleration from kinematics is,

Q: Mr. Mangan runs 100 m south in 12 seconds and 75 m west in 9 seconds. What is his average speed?…

A: Given: The positive and negative axes and directions are shown.

Q: A rocket ship has a position given by x = br² meters. In order for it to reach a velocity of 3.000…

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Q: The acceleration of a particle along an x axis is a = 6.2t, with t in seconds and a in meters per…

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Q: A motorist travels 406 km during a 7.0 hr period. What was the average speed in km/hr and m/s?

A: Write the distance traveled by the motorist. s=406 km   Write the time taken by the motorist. t=7…

Q: The maker of an automobile advertises that it takes 13 seconds to accelerate from 25 kilometers per…

A: It is given that, t=13 su=25 km/hr=6.94 m/sv=80 km/hr=22.22 m/s

Q: A boat can move at a constant velocity of 1.3 m/s in still water. How long will it take for the boat…

A: Given in question: Distance(d) = 1850m                                  Velocity(v) = 1.3 m/s To…

Q: The maker of an automobile advertises that it takes 13 seconds to accelerate from 25 kilometers per…

A: Acceleration is the rate of change in velocity per unit time. Since it is a vector quantity , it has…

Q: A stone is thrown straight upward and it rises to a maximum height of 49 m. With what speed was it…

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Q: A major league pitcher throws the ball at a speed of 97.5 ft/s. How high would the ball go if thrown…

A: Given: The initial speed of the ball is 97.5 ft/s. Introduction: When a body is thrown against…

Q: How far have you traveled after going a constant 5.06 m/s for 8.70 seconds?

A: Given that,                 Speed = 5.06 m/s                 Time  = 8.70 s Formula :…

Q: An object moves in a straight line according to the law v = t^3 -6t^2+4t, where v is in meters per…

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Q: A man wishes to cross due west on a river which is flowing due north at the rate of 3mph. If he can…

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Q: What maximum height, in meters, will be reached by a stone thrown vertically straight upward if it…

A: Let us consider a stone is thrown vertically straight upward having initial speed (u) in…

Q: A motorist travels for 2h at 70 km/h and 1h at 100 km/h. What is her average speed for the trip? *

A: The initial speed, u=70 km/h   The initial time taken, t1=2 h   The final speed, v=100 km/h   The…

Q: A bus increases its speed from 36 kmh to 72 km/h in 10 seconds. Its acceleration is: O 5 ms? (b) 2…

A: Given : vi = 36 km/h = 10 m/s vf = 72 km/h = 20 m/s t = 10 seconds

Q: The world record for the hundred meter dash is 9.58 s. What is the corresponding average speed in…

A: Answer:-  Distance (S) = 100 m  Time (t) = 9.58 s  Speed (V) = Distance/ time  V = S/t  V = (100…

Q: car speedometer has a %% uncertainty. What is range of posSIble speeds (in km/n) nen it reads km/h?…

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Q: What is the average position during the interval from 0.15 h to 4.p h in km?

A: Average position from the position-time graph. T1=0.15 h T2=4.9 h

Q: From the very top of the new One World Trade Center Tower in New York City, an object would take…

A: Time taken by object to hit ground is 10.4 Gravity is given as 9.8 m/s2 Height fall  h= ut-gt22 h =…

Q: A car is traveling at an initial speed of 15 m/s. It then speeds up with a constant acceleration of…

A: Given that:- u=15 m/sa=2 m/s2t=15 secv=?

Q: If a flea can jump straight up to a height of 0.670, how long is it in the air?

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Q: A bullet is fired with a muzzle velocity of 600 m/s. If the length of the barrel is 750 mm, what is…

A: Given data: Muzzle velocity, V=600 m/s Length of the barrel, L=750 mm=750×10-3 m=0.750 m Our…

Q: A ball is thrown vertically downward from the edge of a high cliff with an initial velocity of 25…

A: Initial velocity of ball is u = 25 ft/s = 25/3.281 = 7.62 m/s Time traveled by the ball is t = 1.5 s…

Q: A roller coaster car rolls from rest down a 20° incline with an acceleration of 5.0 m/s? How far…

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Q: A tennis ball is tossed vertically upwards and travels a distance of 6.5 m in 1.2 seconds. What was…

A: Given  Distance = D = 6.5 m  Time = T= 1.2 sec  U =?????   a =-g = -9.8 m/s²

Q: If an airplane travelling 80m/s east is flying against wind velocity of 5 m/s west. What is the…

A: Given data:  Velocity of airplane (va) = 80 m/s, East Velocity of wind (vw) = 5 m/s, West Required:…

Q: A light plane must reach a speed of 82 m/s for takeoff. How long a runway is needed if the…

A: Given, Speed of the light plane v = 82 m/s acceleration a = 33 m/s2   find the length of the runway

Q: What is the magnitude of your average velocity (in m/s)?

A: Given data: The distance moved in the north direction is: N = 20 m The distance moved in the west…

Q: If you are driving 95km/h along a straight road and you look to the side for 2.0 s, how far do you…

A: Given  Speed V = 95 km/h  time t = 2.0 S

Q: If the velocity of a moving object is v(t)=t-2/t^2 in meters per second, then what is its…

A: Velocity is defined as the time rate of change of displacement. It is denoted by v and expressed in…

Q: A rock is dropped out of a window 47m high. How far does it fall in the first 2.6 seconds?

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Q: You drive a car 1500 ft to the east, then 2500 ft to the north. Ifthe trip took 3.0 minutes, what…

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Q: What is the average speed of a car during the first 10 seconds of acceleration when it starts from…

A: Given-  Acceleration a=3 ft/s2 Time t =10  seconds

Q: An airplane needs to reach a velocity of 184 km/h to take off. On a 2000 m runway, what is the…

A: The initial velocity of airplane is zero.

Q: An airplane travels at 300 mi/h south for 2.00 h and then at 250 mi/h north for 750 miles. What is…

A: Given data:  Airplane travels v1 = 300 mi/h for t1 =  2.00 h, in South direction v2 = 250 mi/h for…

Q: A stone is thrown vertically upward from the ground with an initial velocity of 40 ft/s. How high…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: From a speed of v= 48 kph, a train decelerates at the rate of 2m/min², along the path. How far in…

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Q: Motorist travels for 3.0 h at 80 km/h and 2.0 h at 100 km/h. What is her average speed for the trip?

A: Average speed =total distance /total time taken

Q: A 747 airliner reaches its takeoff speed of 156 mi>h in 35.2 s.What is the magnitude of its…

A: Given Data: The final speed of airliner is, v=156 mi/h The time required to takeoff is, t=35.2 s…

Q: A long distance runner has an average speed of 3.0 m/s. How far (in m) does the runner travel in 20…

A: The expression for the travelled distance is,

Q: If a car travelling at 34 m/s is subjected to a steady deceleration of 4 m/s?, how long will it take…

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Q: The expression for velocity is given: v=d/t - v0. The variables are given: d= 35.0 meters, t= 9.00…

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –