Speed is a scalar quantity. O True O False

Q: .is defined as the velocity difference divided by the elapsed time: Average velocity o Distance o…

A: We know, Acceleration is the rate of change of the velocity of an object with respect to time.

Q: The displacement of a body is the shortest distance between initial and final position of the body O…

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Q: A speedboat increases its speed uniformly from 20 m/s to 30 m/s over a distance of 200 m. The…

A: Given  U = 20m/s  V = 30m/s  Distance =D =200m  A=acceleration =????

Q: If the velocity of a body increases with time, then its acceleration is O a. positive O b. neutral…

A: Acceleration is defined as rate of change of velocity. S.I. unit of acceleration is m/s2…

Q: A body moving at 40 m/s and its speed decreasing uniformly at the rate of 5 m/s 2 . Determine a) its…

A: Data known, Initial velocity u is 40m/s, Acceleration a is -5m/s, Time t is 6 seconds.

Q: A car travelling at the speed Vo on a straight level road. After the brakes are applied at t = 0,…

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Q: A stone dropped from a cliff hits the ground 3.00 s later. Assuming the acceleration due to gravity…

A: Given Time at which the stone hits ground =t= 3[s] Acceleration due to gravity=g= 9.81[m/s2] To find…

Q: Which of the following statements is true? At constant acceleration, average and instantaneous…

A: Average and instantaneous velocities are equal when acceleration is zero. Kinematic deals with the…

Q: Answer the following questions. (True or False) a. Motion and acceleration are not the same…

A: Answer the following questions. (True or False)

Q: Now, A = 0.6 and T = 1600 seconds. The freighter begins at rest and reaches the desired acceleration…

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Q: Now, A = 0.4 and T = 3500 seconds. The freighter begins at rest and reaches the desired acceleration…

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Q: A certain freely falling object requires 1.40 s to travel the last 36.5 m before it hits the ground.…

A: Given The distance traveled in 1.40 s is So = 36.5 m. The time is taken by the object to cover So…

Q: What happens to the motion of an object that is thrown upward? O Neither its velocity nor its…

A: According to question we need to find that What happens to the motion of an object that is thrown…

Q: a body moves suchthat its acceleration as a function of time is a = 1+ 15t where t is in minutes and…

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Q: A motorcyclist with a speed of 80 km / h applies the brakes to stop in 5 seconds before a traffic…

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Q: A plane lands and comes to a complete stop through 180 m of runway with a deceleration of 6.25 m/s 2…

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Q: 8 uousa A particle can have an acceleration and yet have zero velocity. O True O False Question 9…

A: For question 8 Yes it can be possible For example if we took a particle moving on a circular path…

Q: If the speed of an object is increasing, O a.its velocity and acceleration are in opposite…

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Q: At a certain time, the velocity of a particle moving in a straight line is 3 cm\sec and its…

A: Given : Velocity (v) = 3 cm/s Acceleration (a) = 2 cm/s2

Q: =0 =1 =2 1=3 -0 -4 B The motion of the rocket labeled B is an example of motion with unitorm (le,…

A: Answer : Uniform Velocity

Q: A bullet moves at 400 m/s for a time of 250 µs. How far does it travel? O 8 cm O 100 cm O 45 cm O 2…

A: In the given question, the speed of the bullet is given and the time taken is also given. We have to…

Q: If the velocity and acceleration of an object are in the opposite directions, O a. The speed of the…

A: As the direction of velocity is opposed by the direction of acceleration.

Q: fa stone is thrown straight upward with the initial velocity v20 mys what is the velocity of the…

A: Given data: Initial velocity of stone is, u=20 m/s. Time interval is, t=24 s.

Q: A car travels east 2 km for 5 minutes, then north3 km for 8 minutes, and then west 4 km for 10…

A: Given that: Total distance travelled by the car, s = 2+8+4 = 14 km Total time = 23 minutes = 23 X 60…

Q: A race car increases its speed from 80 mi/h to 160 mi/h in a distance of 100m. Find (i) the…

A: Given data: The initial speed is u=80 mi/h. The final speed is v=160 mi/h. The distance covered is…

Q: Instantaneous speed and average speed are equal O always. O for motion at constant speed. O for…

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Q: At a certain time, the velocity of a particle moving in a straight line is 3 cm\sec and its…

A: If the particle is moving in straight line with positive velocity and negative acceleration. it…

Q: An object is moving east with a constant speed of 25 m/s for 5 seconds. What is the object's…

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Q: "The given equation is incorrect. v = a + vot, where a is acceleration, t is time, vo is initial and…

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Q: • Change of speed during the 40 th second of motion: Av m/s ** Distance covered during the 160 th…

A: Given : Distance b/w stations →2 km=2000 m Initial velocity→u=0 As it starts from rest Total…

Q: Compare the effect on the acceleration of object A whose change in velocity is twice that of object…

A: Given Change in Velocity of object A = 2 × change in velocity of object B I.e. (∆vA/∆vB) = 2 Time…

Q: When a moving particle remains on a single straight line, the motion is .called rectilinear то FO O…

A: In rectilinear motion, and also known as linear motion is defined as motion in straight line.

Q: .is defined as the distance divided by the elapsed time. Acceleration Distance o Average speed…

A: First, we must understand the difference between speed and velocity.  Velocity is a vector quantity.…

Q: An object accelerates uniformly from rest to 6 m/s in 34 seconds, find: a. The time it takes to…

A: Given: An object takes 34 seconds to accelerate uniformly from rest to 6 m/s. The initial velocity…

Q: A car covers the first half distance between two places at 40 km/h and second half at 60 km/h, the…

A: We know that  The rate at which an object moves from one location to another is called speed. It is…

Q: A hiker walks 1.50 km north and then 2.70 km east, all in 3.50 hourswhat is the average speed of the…

A: Average speed=total distancetotal time hiker travels 4.2 km in 3.5 hrs. so, average speed is…

Q: The time of fall (t) of a free falling object is directly proportional to the height (h) Select one:…

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Q: Friend's house Your house Grocery shop x=0 2km GROCERIE 5km You start from the grocery shop at…

A: The distance between 2 houses=2km The distance between your house and grocery shop=5km Total time…

Q: A ball is thrown straight upwards with a velocity of 15 m/s. It reaches the top of its flight then…

A: Average velocity = (Total displacement)/(Total time interval)

Q: 15. This vector quantity is defined as displacement over time. * O Average Speed O Average Velocity…

A: 1)vector has  magnitude with direction.  2)Displacement is defines as shortest gap between two…

Q: If velocity is constant then acceleration is what? A) constant B) increasing C) 0 D) infinite

A: Acceleration is defined as the rate of change of velocity. The expression for acceleration is,…

Q: Ignoring air resistance, the magnitude of the velocity of an object falling straight down a) depends…

A: From equation of motion V = U + a.t Here, V = final velocity at time 't'. U = initial velocity  a =…

Q: The record for a marathon is two hours, six minutes, 21 seconds. The marathon distance is 41.72 km.…

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

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Q: A ball is projected upward at time t = 0.0 s, from a point on a roof ball is 58.5 m/s. Consider all…

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Q: A car travelling at the speed Vo on a straight level road. After the brakes are applied at t = 0,…

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Q: Which has zero acceleration? O All of these. None of these. O An object moving at a constant…

A: Here the option ( a) is correct. i .e  All of these.

Q: A 1250 kg helicopter travels in a straight line at a constant speed of 31.0 m/s for exactly 15.0…

A: mass = 1250 kg constant speed = 31 m/s time = 15 minutes ' = 15 * 60 = 900 seconds

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 –