An object has a velocity of (5.4 m/s)i -(4.8 m/s)j. Over a period of 1.3 s, its velocity changes to (1.7 m/s)i + (5.9 m/s)j. What is its acceleration? Group of answer choices   a) -(3.7 m/s)i +(11 m/s)j b) -(2.8 m/s)i+(8.2 m/s)j c) (3.7 m/s)i+(11m/s)j d) (2.8 m/s)i+(8.2 m/s)j e) -(2.8 m/s)i+(1.1 m/s)j

Q: A velocity time graph for a moving object is shown below. v (m/s) 7+ 6- 5+ 4+ 3+ 2+ 1+ +2 2 3 4 5 6…

A: Velocity-time graph is the plot of the variation of velocity with respect to the time of a moving…

Q: 18. A car starts from rest and travels in a straight line with a constant acceleration of 7.00…

A: The acceleration of the car,

Q: The motion of a particle is given by the relation a = 6t, where tis in sec and a in m/s2. If s = 8m…

A:

Q: A rocket is launched with an acceleration given by a(t)=2tj, where t is time in seconds. Find the…

A: Since acceleration is only in 'y' direction => ax = 0 => vx = v0x = 5 m/s Now for motion in y…

Q: 41. Average velocity. In t seconds, an object dropped from a certain height will fall s(t) feet,…

A: Given Data: The height is given by, st=16t2. (a) The values of s(5) and s(3) can be calculated as,…

Q: find the average velocity between 1s and 6.5 s. possible answers: a.-0.73 m/s b.+1.4 m/s c.+0.73 m/s…

A: Initial time,  Final time,  Position at 1s,  Position at 6.5s,

Q: The velocity time graph of runner is given in the graph. (a) What is the total distance covered by…

A: In a velocity-time plot the area under the curve gives the total distance travelled during the…

Q: Bob tries riding a skateboard and the graph below shows the velocity-time graph of his motion. What…

A:

Q: The acceleration of a particle along an x axis is a = 6.2t, with t in seconds and a in meters per…

A:

Q: At an absolute pressure of 0.25 N/mm2 and 25 deg C, a gas weighs 16 N/m3. Determine the density and…

A: Given Data: Pressure (P) = 0.25 N/mm2 Temperature (T) = 25 0C = 25 + 273 = 298 K Weight density (γ)…

Q: An object has an initial velocity v = 2.4i +4.5j m/s. Over a period of time t = 2.9 s, its velocity…

A: Answer..

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 car travels 15 km in 1 hour, what is its average velocity. A_10m/sec B-4.16 misec C-2misec…

A:

Q: Based on the velocity vs time graph shown, the object's displacement from t = 0 to t = 4 is: Vx…

A: Given data: The velocity vs time graph Required: The object's displacement from t=0s to 4s

Q: 5. In 5.0 s, a particle moving with constant acceleration along the x axis goes from x = 20 m to x =…

A:

Q: A car is moving along a straight road with an initial velocity of v=14 m/s and an acceleration, a=6…

A: Given that: Initial velocity of car, vi= 14 m/s acceleration of car, a = 6m/s2 time, t = 4 sec

Q: What is the average velocity of the toy car from t = 15 s to t = 35 s?

A: At t = 15 sec , x = 4m At t = 35 sec , x = 2m Now, Vavg = ∆x/t = (2-4)/(35-15) Vavg = - 0.1 m/s

Q: The coordinate of an object is given as a function of time by x =4t2 - t, where x is in meters and t…

A: Co-ordinate of an object as a function of time x = 4t² - t³ Time interval: t = 1 s   to    t = 2 s…

Q: SITUATION 15: A particle moves along a straight line such that its position is defined by sp=t-3t²…

A:

Q: The position of a particle is 7 (t) = (4t"a+ 6y – 2t£) m. a. Determine its velocity and acceleration…

A: r(t) = 4t2i + 6j - 2tk m

Q: The position vector of a particle is given by r (t+1)1 + (t°+1)} m, where t is measured in s. What…

A:

Q: A plot of position versus time is shown below for an object in linear motion. (a) What are the…

A: Given: From Graph, Position at A= 1.0 m Time at A=1.0 s Position at B= 1.0 m Time at B=1.0 s…

Q: Consider the following velocity-time graphs and solve the displacement.

A: The displacement from the velocity-time graph is obtained by calculating the area under the curve.…

Q: A velocity time graph for a moving object is shown below. v (m/s) 7+ 6- 5+ 4 3+ 2+ 1+ 2 3 4 5 6 Find…

A:

Q: A racecar starts from rest and accelerates along a straight track. After 11.0 seconds its velocity…

A:

Q: In coming to a stop, a car leaves skid marks acceleration of -7.0 m/s². A. Find the initial velocity…

A: Distance = S = 80 m final velocity = V f = 0 ( stop) acceleration= a = -7 m/s2

Q: In the 16. A particle moves according to the equation x 10t, where x is in meters and t is in…

A: Part-a The position equation of the particle x = 10t2. The initial time t1 = 2 s. The final time t2…

Q: Below figure gives the acceleration a versus timet for a particle moving along an x axis. The…

A:

Q: The velocity of an object as a function of time is given by v(t) = b + ct - et², where v and t are…

A: Data we have v(t)=b+ct-et2 To find instantaneous acceleration when t=0.63s

Q: The position of a particular particle as a function of time is given by r = (9.60t i + 8.85 j 1.00…

A:

Q: An object has a displacement s at time t given by the equation: s = 5√t - 3t^3. What is the…

A:

Q: The velocity as a function of time of a moving particle is given by v = α+ βt2, where α and β are…

A:

Q: The graph of the velocity versus time for an object is as shown.: Au 2 3 103 5 0 -5 -10- t(s) 5 6 a.…

A:

Q: The x and y coordinates of an object moving in the xy plane are given by the following expressions x…

A: The given values with suitable variables are listed below. Here, x denotes the x-coordinate of the…

Q: 2. A dog named Lassie goes this way, then that way: First she runs east at 4.50 m/s for 20 s. Then…

A: Solution: Lassie runs east at 4.50 m/s for t1 = 20 s, so the displacement made by her is And she…

Q: The position of a particle moving a long x- axis is given by x (t) =8 t²- 2t³, where x in meter and…

A: here dx/dt= velocity  dv/dt = acceleration

Q: A bird is flying due east. Its distance from a tall building is given by x(t) = 28 m+ (12.4) t-…

A:

Q: The flight path of the particle as it takes off from A is := (2+²) m and defined by the parametric…

A:

Q: a ball is thrown straight up.  what is the velocity and acceleration of the ball at the highest…

A:

Q: Bob is walking along an abandoned railroad track. He starts walking when his position is r = 3.45 m…

A: Displacement of any object/body is defined as the difference between its initial position and final…

Q: A particle has a displacement given by the equation x(t) = 3.0 + 2.0t, where x is in meters and t is…

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 –