Mr. Gretskty has an antique bicycle that he takes to antique auto shows. below is a table of his distance and the hours he traveled. What is his rate of change?

Q: Usain Bolt of Jamaica set a world record in 2009 for the 200-meter dash with a time of 19.19…

A:

Q: A stone is thrown hotrizontally with an initial speed of 10 m/s from the edge of a cliff. A stop…

A:

Q: The 1992 world speed record for a bicycle (human-powered vehicule) was set by Chris Huber. His time…

A: Time taken by Chris Huber in 1992 to cover 200 m stretch = 6.509 seconds Using formula, Speed×time =…

Q: Wat is the distance the motorcycle covered in its 300-second travel if the speed upon recording is…

A:

Q: What is the average velocity of car who travels  500m in 10 seconds.?

A: Given : Distance traveled by car (d) = 500 m Time taken (t) = 10 seconds

Q: A car has 1 hour and 20 minutes to travel 80 km. The car travels at 16m/sec for the first 30…

A: The distance covered is, x=utx=16 m/s30 minutes60 s1 minutex=28800 mx=28.8 km   thus, the remaining…

Q: In a track meet a sprinter runs 400 meters in 100 seconds what was the sprinters average speed

A: Requried : In a track meet a sprinter runs 400 meters in 100 seconds what was the sprinters average…

Q: Daniel was driving down the highway at a constant speed of 70mph.Which of the following graphs…

A: Given data:  Constant Speed (v) = 70 mph Required: The motion graph

Q: Secretariat is known as the horse with the fastest run in the Kentucky Derby. IfSecretariat’s record…

A: Average velocity is defined as the ratio of total displacement to the total time taken.

Q: You pass a road sign saying New York 110 km. if you drive a constant speed of 100 km/h how long…

A: Given data *The given distance is d = 110 km *The given constant speed is s = 100 km/h

Q: A car goes from point A to point B. The speed of the car is constant at 88 km/hr for 65% of the…

A:

Q: You drop a ball from rest, at 15.4 seconds how fast is it traveling in m/s? (round your answer to…

A:

Q: During takeoff, an airplane goes from 0 to 53 m/s is 6 s. How far is it going after 7 s. Calculate…

A: initial speed, u=0 m/s final speed, v = 53 m/s time taken, t = 6 s

Q: A runner in a marathon passes the 5-mile mark at 1 o'clock and the 20-mile mark at 3 o'clock. What…

A: Given,

Q: An olympic gold medalist from Australia runs one time around the 400-meter track in 35 seconds. What…

A:

Q: An olympic gold medalist from Australia runs one time around the 400-meter track in 40 seconds. What…

A: distance (d) = 400 m Time taken (t) = 40 seconds

Q: An olympic gold medalist from Moscow runs one time around the 400-meter track in 40 seconds. What is…

A:

Q: Doing a jump, a participant takes off with a velocity of 2.10 m/s. What is their jump height?

A: initial velocity (u) = 2.1 m/s Using equation of motion V2 - U 2 = 2 g H where V = final velocity =…

Q: Johnny walks 70 km in 2.3 hours. Calculate Johnny's speed in km/h.

A: Given data: Distance (d) = 70 km Time (t) = 2.3 hours Required: Speed in km/h

Q: What is the velocity of a vehicle that has traveled 45m for 30 minutes

A:

Q: Rohan skates with a constant speed of 12 km/hr. Calculate the time he needs to travel a distance of…

A: Given data : The speed through which rohan skates=12 km/hr The distance travelled=96 km   To find :…

Q: You skip north for 12 minutes to your best friend's house that is 1.5 kilometers away. What is your…

A: Given Displacement d = 1.5 km Duration t = 12 min

Q: A runner in a marathon passes the 7-mile mark at 1 o'clock and the 18-mile mark at 5 o'clock. What…

A:

Q: A ball drops from a building and strikes the ground in 1.8 s. The speed (in m/s) with which the ball…

A: Using equation of kinematics, v=u+at=u-gt                     Since, a=-g

Q: A girl on a bridge throws a rock straight down at -12.5 m/s. It hits the ground 38.4 m below. How…

A: Given  V = -12.5 m/sec  Height of ground ,H = 38.4 m  Acceleration = a =-g = -9.8 m/s²

Q: The graphic shows the speed of a snail. Calculate the acceleration of the snail. a. 2m/s

A: Given  velocity time graph of snail motion.

Q: A stone is dropped from the top of a cliff.It hits the ground Belo after 3.25s.How high is the…

A: Given data:  Initial velocity (V0) = 0 m/s Time (t) = 3.25 s Required: The height of the cliff

Q: A ball is thrown vertically upward from Earth’s surface and falls back to Earth. Which graph plots…

A: Given:-                A ball is thrown vertically upward from Earth’s surface and falls back to…

Q: Calculate the average speed of Charlie, who runs 200m to the store in 80 seconds.

A: Given data: Distance covered by Charlie is, d=200 m. Time taken to cover the distance is, t=80 s.

Q: A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds.…

A: Acceleration is defined as the rate of change of speed. In this case, we have: Initial speed, u=0…

Q: Steve drives home from his other triends house near Seattle. a distance of 103 miles On the way home…

A: Let t be the total time taken to travel D=103 mi.  Express the distance, D1, travelled with a speed…

Q: In a swimming race, Briana swam 50 meters in 40 seconds.  What is her average speed?

A: The given data are: d=50 mt=40 s Here, d denotes the distance and t denotes the time.

Q: Two distance-time graphs and two speed-time graphs are shown. Speee/ distacoe Which graph represents…

A: The state of rest means that the velocity/speed of the particle is zero. using the definition of the…

Q: A boat slows down from 40m/s to 10m/s as it travels 300m. How much time did this take?

A: Given data: *The initial speed of the boat is u = 40 m/s *The final speed of the boat is v = 10 m/s…

Q: What is the final velocity of a wagon when it bumped another cart if the average velocity is 18m/s.…

A:

Q: When Charlie found the Golden Ticket, he ran home to show Grandpa Joe. At first, he 5.3 s, but then…

A: initial velocity, u = 5.3 m/s  final velocity, v = 8.7 m/s  time, t = 4.1 s  The first equation is…

Q: A runner on a 5km trail race reaches the finish line in 21.8 minutes. what was the runners average…

A: Given, Distance,d=5 km Time,t=21.8 min=0.36 h Displacement,s=3.38 km

Q: The graph below shows the velocity of an object as a function of time:

A: Given data: The graph between velocity and time Required: The distance traveled from origin to C

Q: A raindrop on a drizzly day takes one minute from the time it leaves the cloud until it hits your…

A: ∆t= 1 minute ∆x= 3 miles V¯=∆x∆t=3 miles1 minute=3 miles1 minute*60 minute1 hour V¯=180 mileshour

Q: Give an example of a device used to measure time and identify what change in that deviceindicates a…

A: Watch is a device used to measure time.

Q: On a speed-time graph, what is the acceleration during the interval if the velocity changes from 20…

A: Given,

Q: The velocity-time graphs represent the motion of three different objects. Identify any object that…

A: Given the graph of velocity vs time.   It is required to select the correct graph that identifies…

Q: Average Speed totaltime A physis student drves for 20 hours going 10 mph, then spends 30 minstes not…

A:

Q: What distance does a stone travel that is thrown down with a velocity of 20m/s and reaches the…

A: The given motion happens under constant gravitational acceleration so the equation of motion can be…

Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.