Question

In: Physics

1) What is the instantaneous velocity of a freely falling object 14 s after it is...

1) What is the instantaneous velocity of a freely falling object 14 s after it is released from a position of rest?

2) What is its average velocity during this interval?

3) How far will it fall during this time?

Solutions

Expert Solution

Here is what I solved before, please modify the figures as per your question. Please let me know if you have further questions. Ifthis helps then kindly rate 5-stars.

What is the instantaneous velocity of a freely falling object 10s after it is released from a position of rest? What is its average velocity during this 10s interval? How far will it go during this velocity during this time?

Initial velocity  u = 0 m / s
Accleration a = g = 9.8 m / s 2

time t = 10 s

Let   instantaneous velocity of a freelyfalling object 10s after it is released from a position of restbe v then , from the relation ,

v = u + at we have   

v = gt

     = 98 m / s

Let the distance travelled in 10 s be S thenfrom the relation ,

S = ut + ( 1/ 2) a t 2    weget

S = ( 1/ 2) g t 2

    = 490 m

?    its average velocity duringthis 10s interval v ' = S / t

                                                                                    = 49 m / s

genius_generous answered 2 years ago
Next > < Previous

Related Solutions

SF 1: Quadratic Resistive Forces In lecture, we derived the velocity of a falling object subject...
SF 1: Quadratic Resistive Forces In lecture, we derived the velocity of a falling object subject to resistive force linear in velocity (n = 1). In a fluid, a better phenomenological (experimentally motivated) model of drag is a force quadratic in velocity. That is, consider a resistive force of the form R = −bv2, (1) where b is a constant that depends on specific properties of the object and fluid. a) What are the dimensions b? b) Explain the physical...
what is the definition of mechanics,kinematics solving problems, instantaneous velocity, instantaneous speed, instantaneous acceleration, significant figures,...
what is the definition of mechanics,kinematics solving problems, instantaneous velocity, instantaneous speed, instantaneous acceleration, significant figures, scientific notation, standard scientific notation,?
An object is thrown upward with an initial velocity of 32.1 m/s. When the object reaches...
An object is thrown upward with an initial velocity of 32.1 m/s. When the object reaches it maximum height, it is true of the acceleration, a, and the velocity, v, that: both its acceleration and velocity are zero both its acceleration and velocity change sign velocity is equal to zero, but acceleration is not acceleration is equal to zero, but velocity is not None of the above. Please help. Only one answer is true. Please give reason why.
An object is launched with an initial velocity of 50.0 m/s at a launch angle of...
An object is launched with an initial velocity of 50.0 m/s at a launch angle of 36.9∘ above the horizontal. Determine x-values at each 1 s from t = 0 s to t = 6 s. Determine y-values at each 1 s from t = 0 s to t = 6 s. Determine vx-values at each 1 s from t = 0 s to t = 6 s. Determine vy-values at each 1 s from t = 0 s to...
An object is launched with an initial velocity of 50.0 m/s at a launch angle of...
An object is launched with an initial velocity of 50.0 m/s at a launch angle of 36.9? above the horizontal. A.Determine x-values at each 1 s from t = 0 s to t = 6 s. B.Determine y-values at each 1 s from t = 0 s to t = 6 s. C.Determine vx-values at each 1 s from t = 0 s to t = 6 s. D.Determine vy-values at each 1 s from t = 0 s to...
An object is launched at a velocity of 20 m/s in a direction making an angle...
An object is launched at a velocity of 20 m/s in a direction making an angle of 25 degrees upward with the horizontal. a) What is the maximum height reached by the object? b) What is the total flight time (between launch and touching the ground) of the object? c) What is the horizontal range (maximum x above ground) of the object? d) What is the magnitude of the horizontal component of the velocity of the object just before it...
An object is initially traveling at a velocity of 12 m/s. It then begins to change...
An object is initially traveling at a velocity of 12 m/s. It then begins to change it’s velocity according to the function ?=2.5?+3? v = 2 . 5 s + 3 a , where v is the velocity of the object, s is the objects position, and a is the acceleration. Determine the velocity of the object 30 meters after the velocity begins to change. (17.5 m/s)
A2-kg object is falling downward with its speed increasing at a rate of 8m/s per second....
A2-kg object is falling downward with its speed increasing at a rate of 8m/s per second. We conjecture that there must be some other force acting on the object in addition to the downward pull of gravity. What can we say about this other force? A. It has a magnitude of 2 N and points in the downward direction. B. It has a magnitude of 16 N and points in the upward direction. C. It has a magnitude of 36...
1. A drone is launched with a velocity of 51 m/s, 67. Three minutes after the...
1. A drone is launched with a velocity of 51 m/s, 67. Three minutes after the drone is launched it suddenly changed its course to 30 m/s, 226 to avoid high trees on its way. Then, it finally goes back at a rate of 31 m/s, 52. Calculate for the total resultant vector of the drone. ------------ Criteria: Table of components Illustration, Given & Required​ ​​Equation and Solution ​ ​Final Answer    ​​​     ​​
An object of 10 kg mass is thrown vertically upward with a velocity of 8 m/s....
An object of 10 kg mass is thrown vertically upward with a velocity of 8 m/s. Calculate the potential energy at the maximum height.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT