Answers: 1
, the particle should have a velocity of 
.At 
, the particle should have a velocity of 
.At 
, the particle should have a velocity of 
.
, at 
, the particle should have a velocity of 
.
is equal to zero. For 
:![\begin{aligned}v &= \frac{\rm d}{{\rm d}t}\, [s] = \frac{\rm d}{{\rm d}t}\, \left[\frac{4}{t^2}\right] \\ &= \frac{\rm d}{{\rm d}t}\, \left[4\, t^{-2}\right] = 4\, \left((-2)\, t^{-3}\right) = -8\, t^{-3} =-\frac{8}{t^3}\end{aligned}](/tpl/images/0700/4982/b60b4.png)
.
, 
, and 
to obtain the required results. 
Another question on Physics
Physics, 21.06.2019 22:10
The car hoist allows the car to be driven onto the platform, after which the rear wheels are raised. if the loading from both rear wheels is 1380 lb, determine the force in the hydraulic cylinder ab. neglect the weight of the platform itself. member bcd is a right-angle bell crank pinned to the ramp at c. the force is positive if in tension, negative if in compression.
Answers: 2
Physics, 22.06.2019 13:30
FÃsica: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25º, b) el tiempo que el balón permanece en el aire.
Answers: 1
Physics, 22.06.2019 19:50
An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)
Answers: 2
Physics, 22.06.2019 20:10
Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?
Answers: 1
You know the right answer?
The displacement (in meters) of a particle moving in a straight line is given by the equation of mot...
Questions
English, 24.08.2019 04:10
Mathematics, 24.08.2019 04:10
Mathematics, 24.08.2019 04:10
Mathematics, 24.08.2019 04:10
Physics, 24.08.2019 04:10
Mathematics, 24.08.2019 04:10
Mathematics, 24.08.2019 04:10
Mathematics, 24.08.2019 04:10
English, 24.08.2019 04:10
