Choose the BEST answer to the following: The average speed of a gazelle traveling a distance of 2 km in a time of one-half hour is (a) 1 km/h. (b) 2 km/h. (c) 4 km/h. (d) more than 4 km/h.

Q: If a ball is dropped from a balloon that is 640 feet above the ground and rising at a rate of 48…

A: Initial Height, h = 640 feet Initial Velocity, u = 48 feet/second upwards

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: Convert a velocity of 60 miles per hour to units of feet per second.

A: Given data: Velocity (v) = 60 mi/hr Required: The velocity in ft/s

Q: A cliff is 75 m high. At its peak, Mary dropped two stones, in which the second stone is dropped 1.4…

A: The time between release of two stones is 1.4 s.

Q: An airplane has a average speed of 740 mph while traveling from st.Louis to San Diego. If the trip…

A: Average speed, v = 740mph time, t = 3.5 hours

Q: Which has a greater speed, a velocity of +5 m/s or a velocity of −10 m/s

A: We need to compare the velocity

Q: Henrietta is riding the Giant Drop at Great America. If Henrietta free-falls for 2.9 seconds, what…

A:

Q: A car is moving at a speed of 50 km/h. Its speed expresses in m/s is 25 m/s 13.8 m/s 20 m/s 30…

A: Speed of car (u) = 50 kmhr Using conversion factor : 1 km = 1000 m 1 hr = 3600 seconds

Q: Once you hear the word motion, what comes to your mind first

A: Introduction: When we hear about motion it means the object is changing its position with respect to…

Q: 60 40 10 15 20 Time in minutes A car starts from rest and moves in a straight line. Calculate the…

A: Graph of speed vs time is given and distance travelled is asked.

Q: Johnny drives on a freeway at a constant speed of 100nmph and in a straight line, what is happening…

A: Acceleration is the rate of change of velocity.

Q: Match the vocabulary word with the correct definition. the distance measured from a starting point,…

A: Given in question - Data in two column. To find - correct match for elements of column 1 with column…

Q: 549.76 sft Express your answer to five significant figures. 167.57 m

A: Given data: 549.76 ft Required: The equivalent value of 549.76 ft in meters

Q: 60 40 20 10 15 20 Speed in feet per second

A: Given, Speed-time graph is given.

Q: car accelerates from 25 km/hr to 55 km/hr in 30 seconds. What is its acceleration?

A:

Q: car travels 16 km in 12 min, calculate the speed of the car, express your answer is mph there are…

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Q: What law tells us why we should buckle up?

A:

Q: Rank the following speeds in order of decreasing magnitude. Indicate ties where appropriate. Rank…

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Q: Suppose you drive from Here to There at a speed of 30 miles/hour and then drive back from There to…

A: By definition, average speed = total distance traveledtotal time taken. So, if the body moves a…

Q: What force would be needed to produce an acceleration of 2 m/s² in a ball of mass 4 kg ?

A: Acceleration (a) = 2m/s2 mass (m) = 4 kg Force required (f) = ?

Q: Show that the average speed of a rabbit that runs a distance of 30 m in a time of 2 s is 15 m/s.

A: The expression for the average speed is,

Q: How much distance did he travel?

A: Given. Boy travels with an average speed,  ⇒ 15 m/sIt take time to travels at,  Time,t= 25 minFind…

Q: If matthew rides south on his bicycle in a straight line for 23 min(0.383hr) with an average…

A:

Q: What it is called the study of the geometry of motion?

A: The study of geometry of motion is called  Kinematics .

Q: an object with an accoleration of 20m/s will __________________. a.  change its velocity by 20m/s…

A: The rate of change of velocity is known as acceleration. Consider the initial velocity of the object…

Q: Calculate the acceleration of a car that starts at 20 miles per hour and speeds up to 55 miles per…

A: Solution: Given that vi = 20 mph  vf = 55 mph t = 7 s = 7/3600 h

Q: If your car accelerates from rest to 30.0 m/s in 8.0 seconds, what is its acceleration? Using that…

A: a=v-u∆t=30.0 m/s-0 m/s8.0 s=3.75 m/s2

Q: A student traveling home from school spent 5.5 hours traveling at an average speed of 65 km/hr. The…

A: A travelling speed of the student from school to home,

Q: If the fastest you can safely drive is 65 mi/h, what is the longest time you can stop for dinner if…

A: t=dv=460 mi65 mi/h=7.1 h

Q: What is the acceleration of a car that goes from 10 m/s to 50 m/s in 8.3 seconds?

A: Given data: Initial velocity (v0) = 10 m/s Final velocity (v) = 50 m/s Time (t) = 8.3 s Required:…

Q: Please, I need to solve the question in less than an hour.

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Q: Show that 1.0 m/s = 3.6 km/h . Hint: Show the explicit steps involved in converting 1.0 m/s = 3.6…

A:

Q: A trip to cape Canaveral, Florida takes 10 hours. The distance is 816 km. Calculate the average…

A: Given that,time,t=10 hrsdistance,d=816 km

Q: age speed of an arrow that takes 2.5 seconds to hit

A: Given- Distance x=125 mtime t=2.5 seconds

Q: Please match the following quantities with the type of measurement. 55.5 m North velocity [ Choose ]…

A: Since all of them have units of distance(m,cm,in,mile) and all of them has direction. Since…

Q: I bought a car which has an acceleration of 0.5 m/s²for the first 60 seconds, maintains velocity for…

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Q: If the acceleration of an object is 6 m/s2, how much does the object’s velocity change each second

A: Given: The acceleration of the object is 6 m/s2. The time difference is 1 s. Introduction: The rate…

Q: What force is required to accelerate an object having a mass of 6 kg at 9 m/s?

A: Introduction :  In this question we are provided it value of mass and acceleration . With these data…

Q: How far can a bat travel in nine hours, if it is flying at nineteen miles per hour?

A: Given data:  Time (t) = 9 hr Speed (v) = 19 miles/hr Required: Distance traveled (d)

Q: If a car goes from 0 to 75 mph in 5 seconds with constant acceleration, what is that acceleration?

A:

Q: Mariana puts the pedal to the metal and increases her speed as follows. 0 miles per second at 0…

A: Acceleration of the car is a=vf-vitf-ti 0 miles per second at 0 seconds and 5 miles per second at 1…

Q: A jet plane has a takeoff speed of ? = 75 m/s and can move along the runway at an average…

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Q: Jane drives at an average speed of 45 mph on a journey of 135 miles. How long does the journey take?…

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Q: A common unit for speed used in sailing is the knot (nautical miles per hour).  A nautical mile is…

A: Given, Speed of the boat VB = 22 knots Speed of the car: VC = 22 mph 1 knot = 1.15 mph ∴VB=22 knots…

Q: Choose the BEST answer to the following: As a blinking light source approaching you gains in speed,…

A: The observed frequency of the light is determined by the Doppler effect is

Q: Superhighway in Canada have speed limits of 100 km/h. How does this compare with the 65 min/h speed…

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Q: Which of the following is an example of veloaity? a Waking 25 am/hour b Flying 5 km/s West c Running…

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Q: Donald rode his bicycle 25 km and the entire trip took him 3.5 hours, which includes a 15 minute…

A: Average speed is given by Average speed = total distance/total time

Q: A train that took 45 minutes to travel a 24 km long jourmey with seven stations. It stopped for a…

A: