An experimental rocket car starting from rest reaches a speed of after a straight 400-m run on a level salt flat. Assuming that acceleration is constant, (a) what was the time of the run, and (b) what is the magnitude of the acceleration?

Q: An object has an initial velocity of 10 m/s and an acceleration of 3 m/s squared. How long will it…

A: The acceleration is defined as the rate of change of velocity.

Q: The velocity – time curve for a point moving on a straight line is given by the equation: v =…

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Q: If the car’s speed decreases at a constant rate from 70 mi/hmi/h to 40 mi/hmi/h in 3.0 ss, what is…

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Q: The position ? of a particle along a straight line is given by s = sin(0.4t) - 10t + 20t2 , where s…

A:

Q: Assume there is a completely straight highway from City A to City B, which is 200km long. You drive…

A: Average speed=Total distancetime                     = 200+2004                    = 100 km/h

Q: A baseball is pitched, reaching the batter with a speed of 37 m/s, and is hit such that it returns…

A: Given Data:- Initial speed of the baseball is vi=37 m/s Final speed of the baseball is vf=48 m/s…

Q: At a football tryout, a player runs a 40-yard dash in t2 = 4.00 seconds. If the reaches his maximum…

A: Answer

Q: Eg In a boat race, boat A is leading boat B by 50 m and both boats are traveling at a constant speed…

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Q: If you know the initial position and initial velocity of a vehicle and have a record of the…

A: How to calculate the a vehicle's position after a certain time if the initial position, velocity and…

Q: The sport with the fastest moving ball is jai alai, where measured speeds have reached 303 km/h. If…

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Q: Let SA = 15t2 + 10t + 20 and SB = 5t2 + 40t, t greater than or equal to 0, be the position of cars A…

A: We have two cars A and B and their positions are given by SA=15t2+10t+20 and SB=5t2+40t. We need…

Q: A car moving with uniform acceleration covers T 450 meter in first 5 second interval and covers 700…

A:

Q: A westbound car on the PA turnpike passes the exit for the northeast extension traveling at 16.2…

A: Let positive direction is in the east direction.

Q: Under what circumstances does distance traveled equal magnitude of displacement? What is the only…

A: Distance and displacement

Q: A vehicle is running with uniform acceleration covers 450 m in a 5 second interval and further it…

A: Given data as per question initial distance  =  450m time  =   5s

Q: Two trains travel in the opposite direction, leaving each of the opposite stations which call…

A: Let the two trains meet after time t. Thus, after time, t, the total distance travelled by the two…

Q: A train on a very long straight level stretch of tracks, starting from a dead stop, steadily speeds…

A: Case 1) initial speed = 0 msfinal speed (v) = 28 mstime taken (t) = 14 minutes = 14×60 seconds = 840…

Q: Most important in an investigation of an airplane crash by the U.S. National Transportation Safety…

A: Acceleration (a) = - 3450 g where "g" is the acceleration due to gravity Time (t) = 6.49 ms Final…

Q: A baseball is hit with a bat and, as a result, its direction is completely reversed and its final…

A: Given values: Contact time,∆t=0.60 s Magnitude of initial speed,vi=v Magnitude of final speed,vf=v2

Q: At time t=0, a body has a velocity of 5 meters per second, EASTWARD; at time t=2 seconds, its…

A: ( In our convention have taken the velocity positive in the westward direction.)

Q: Two cars leave from an intersection at the same time. Car A travels south at 80 km/h, while car B…

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Q: What should a graph of the position vs time look like if it shows an object moving to the left at a…

A:

Q: A football player has an initial speed of 8 m/s and is stopped by a defensive lineman in a time…

A: Initial speed (v) = 8 m/sfinal speed (V) = 0 m/stime taken = 0.2 seconds

Q: At the instant the traffic light turns green, a car starts with a constant acceleration of 1.76…

A: Given that, a =1.76 m/s2 u =0  (when the car start its initial velocity is zero) v =9.01 m/s

Q: If you divide the total distance traveled on a car trip (as determined by the odometer) by the time…

A: It is known that average speed is defined as the total distance traveled per unit time . This means…

Q: Starting at time t = 0, an object starts moving along a straight line. Its coordinate in meters is…

A:

Q: What should a graph of the velocity vs time look like if it shows an object moving to the left at a…

A: Given data:  The object is moving to the left at a constant velocity

Q: In a boat race, boat A is leading boat B by 50 m and both boats are traveling at a constant speed of…

A: Given : Distance between boat A and boat B = 50 m Initial speed of boat A and boat B =va=vb 180 km/h…

Q: At a football tryout, a player runs a 40-yard dash in t2 = 5.00 seconds. If the reaches his maximum…

A:

Q: A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a…

A:

Q: Most important in an investigation of an airplane crash by the U.S. National Transportation Safety…

A: Given information: Here, a is the black box’s deceleration, t is the time interval and vf is the…

Q: If the following is a graph of the velocity, in the x direction, of an object as a function time,…

A: Given Data: The initial position is, x=12.7 m From the above figure, we can calculate the area or…

Q: A typical jetliner lands at a speed of 160 mi/h and decelerates at the rate of (10.0 mi/h)/s. If the…

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Q: The

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Q: In a sprint tryout, an athlete runs a 100-meter dash in 10 seconds. If the athlete reaches the…

A: Given data: The total distance ran by the athlete, S=100 m. The time taken by the athlete to run…

Q: Rather than having constant acceleration, an object accelerates along the ver- tical (y) axis with a…

A:

Q: An experimental rocket car starting from rest reaches a speed of 560 km/h  after a straight 400-m…

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Q: :) Our superhero is not entirely exempt from the laws of physics, however, and in order to reach…

A:

Q: Diego runs back and forth along a straight track. During the time interval 0sts 30 seconds, 200 sin…

A:

Q: On a one lane road, a person driving a car at v1 = 54 mi/h suddenly notices a truck 0.65 mi in front…

A: Velocity of the car (v1)=54 mph Distance between truck and car (d)=0.65 mi Velocity of the truck…

Q: A particle moves along a horizontal path with a velocity of v = (3t2 - 6t) m/s, where t is the time…

A:

Q: During a braking test, a car is brought to rest beginning from an initial speed of 52 mi/hr in a…

A:

Q: On a one lane road, a person driving a car at v1 = 54 mi/h suddenly notices a truck 0.65 mi in front…

A: Given data: Velocity of the car, v1=54 mi/h Velocity of the truck, v2=35 mi/h

Q: The body, with an initial speed of 2 m/s, began to slide along an inclined plane. For l0s, it passes…

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Q: A car, moving to the left in a straight line in the negative x-direction, travels a distance d = 32…

A:

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 –