A sports car accelerates from rest to 97km/h in 4.2 s. What is its average acceleration in m/s2? Express your answer using two significant figures.

Q: A motorist drives north for 35 minutes at 85 km per hour and then stops for 15 minutes. He then…

A: Given: The speed of the motorist in the first go is 85 km/h. The time duration is 35 min. The…

Q: A baseball pitcher delivers a fast ball. During the throw, the speed of the ball increases from 0 to…

A: Given : Initial Velocity (u) = 0 m/s Final Velocity (v) = 31.5 m/s Time Taken (t) = 0.167 seconds

Q: Suppose a dragster decelerates from 50.0 m/s with a constant acceleration. It comes to a stop in a…

A:

Q: Timnit has to pull the weeds in her mother's garden. She notices a caterpillar crawling along the…

A: Given quantities: The speed of the caterpillar (V) = 0.125 m/s Time taken to travel (t) = 8 seconds…

Q: a) What is the acceleration during the first 4 seconds of motion. ( include sign ) b) What is the…

A: NOTE: According to the guidelines we are allowed to answer only the first 3 subparts. If you want to…

Q: An object moves along the positive x-axis with a speed of V, =4 m/s for 2 seconds, then moves along…

A: Given: The velocity V1 is 4 m/s. The time duration is 2 s. The velocity V2 is 7 m/s. The time…

Q: The driver of a car traveling down the interstate slams on the brakes, causing the car to skid to…

A:

Q: In m/s?, what is the acceleration when t = 7.5 sec? Express your answer as an integer, not as a…

A: The acceleration at a time in velocity-time graph represents the at that time.

Q: A stone is thrown straight upward and reaches a maximum height of 32.3 m above its launch point.…

A: Given value--- maximum height = 32.3 m. final speed = 0 m/s. We have to find--- initial speed?

Q: A runner is moving with a speed of 2.68[m/s]. How long will it take the runner to complete a 5.0[km]…

A: The expression for find time taken by the runner to complete the race is t=dv

Q: A car is traveling at 40 mph on a straight road. The driver applies the brakes for 3 sec, producing…

A: initial velocity u= 40mph =17.88m/s duration of brake applied t = 3sec deceleration a = -5.5ft/sec2=…

Q: A bicyclist rides the first 60 km of a 220 km race in 1.5 hours. What is the bicyclist average…

A:

Q: A car has an initial velocity of 18.4 m/s and a constant acceleration of 9.2m/s^2. What is the…

A: Given that - Initial velocity of the car Acceleration of the car  Time To Find - We have to…

Q: A driver traveling north slows down from 31.9 m/s to 0 m/s in 6.5 seconds. What is the magnitude of…

A: Given that, Initial velocity (u) = 31.9 m/s  Final velocity (v) = 0 m/s  Time (t) = 6.5 seconds  We…

Q: Over a distance of 225 meters, an automobile going initially at +5.0 m/s accelerates evenly at +0.50…

A: Kinematics.

Q: A car is traveling at an initial speed of 20 m/s and slows to rest with an acceleration of -5.0 m/s.…

A: The initial speed of the car,(u)=20 m/sec -----(1) [Given] Acceleration of the car,(a)=(-)5 m/sec2…

Q: Sophie is a football player. Her teammate passes the ball to her with a speed of 15.0m/s. Sophie…

A: Given:         v1= 15 m/s         v2= 30 m/s        ∆t = 9 ms= 9×10-3s

Q: While driving south on hwy 400, Jim gets stuck travelling at 1.9 m/s behind a slow truck. He finally…

A:

Q: A long distance runner has an average speed of 3.2 m/s. How far (in m) does the runner travel in 42…

A: Given information:The average speed of the runner (v) = 3.2 m/sThe time for which the runner runs…

Q: A cart is given an initial velocity of 7.6 m/s and experiences a constant acceleration of 3.6 m/s?.…

A:

Q: A runner of mass 55.7kg starts from rest and accelerates with a constant acceleration of 1.1 m/s2.…

A: Given: The mass of the runner is 55.7 kg. The initial velocity of the runner is 0 m/s. The…

Q: Pedro is driving a motorcycle along Espana boulevard. His position  (in meters) at any given time…

A: Given data *Pedro's position  (in meters) at any given time is x(t) = 1.124t2 + 6.022 Pedro's…

Q: A car starts from rest at t = 0 s, and speeds up with a constant acceleration of 1.66 m/s2 for 6.00…

A: Given that :a=1.66 m/s2t=6 s

Q: A car, starting from rest, accelerates in a straight-line path at a constant rate of 3.07 m/s?. How…

A: Using kinematics, s=ut+12at2

Q: A rocket sled accelerates at 27.1 m/s2 for 3.9 s. How far has it traveled from its initial position…

A:

Q: A rocket ship starts from rest and moves in a straight line with a constant acceleration of 100 m/s2…

A:

Q: Your favorite car goes zero to 60.0 mph in 5.00 seconds. Assuming it accelerates uniformly, sketch a…

A: Assume car to be travelling in straight line. Let u be the car’s initial velocity, v be the car’s…

Q: After accelerating up to a speed of 20 m/s on his bike, Jim coasts (stops pedaling). Due to air drag…

A: Initial speed (u) = 20 m/s final speed (v) = 16 m/s t = 10 seconds

Q: You have already traveled 30 miles east and then 30 miles north. To get back to the start, you…

A: Given: 30 mile east  30 mile North  Get back to the start you travel 30 miles west  t1 = 1 hour…

Q: The citizen leaves a city at 3:00 p.m. It travels at 36.0 m / s when the engine of its car stops.…

A: Given: Initial speed of car (u) = 36.0 m/s During first t1 =12 seconds the acceleration of car = a1.…

Q: bird, accelerating from rest at a constant rate, experiences a displacement of 6.9 m in 1.1 s. hat…

A: Given value--- initial velocity = 0 m/s. displacement = 6.9 m. time = 1.1 m. We have to find---…

Q: Over a distance of 225 meters, an automobile going initially at +5.0 m/s accelerates evenly at +0.50…

A:

Q: A speeding car is traveling at a constant speed of 39.5 m/s when it passes a police car. The police…

A: Given The constant speed of the speeding car is v = 39.5 m/s. The acceleration of police car is a =…

Q: A ball is thrown straight down at 1.29 m/s and hits the ground 1.07 seconds later. How many meters…

A: Given  Initial velocity u = 1.29 m/s Time of flight t = 1.07 sec Accelerated = g = 9.8 m/s2

Q: A high-performance sports car can go from 0 to 100 mph (44.7 m/s) in 7.9s.  a) What is the car's…

A:

Q: Julie drives 91 mi to Grandmother's house. On the way to Grandmother's house, Julie drives half the…

A: Average speed is, vavg=total distancetotal time Total distance traveled by Julie on the way to…

Q: A student drives 40 km south in an attempt to get to a science fair competition before realizing he…

A: Given : Distance traveled south = 40 km Distance traveled back north = 15 km Total distance traveled…

Q: In outer space, a rocket ship starts from rest and moves in a straight line with a constant…

A: The space vehicle is initially at rest, that is, Acceleration for time  is Acceleration for the next…

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 –