1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marusya05 [52]
2 years ago
14

The position of a particle s given by x=3-2t+3t^2. What is its instantaneous velocity and instantaneous acceleration as t=3.

Physics
1 answer:
Leno4ka [110]2 years ago
5 0

Explanation:

velocity = dx/dt

\frac{dx}{dt}  = 6t - 2 = 16

acceleration =

\frac{ {d}^{2}x }{d {t}^{2} }  = 6 \ \\

You might be interested in
ANSWER ASAP PLS
posledela

Answer:

<h3>JAWAB SECEPATNYA pliss</h3><h3 /><h3>Anda memiliki rangkaian paralel 10 volt, dengan 2 resistor di atasnya. Berapakah tegangan pada</h3><h3>resistor pertama? Di seberang kedua?</h3><h3 /><h3>(saya akan menandai tercerdas tolong bantu)</h3>

Explanation:

Hukum Ohm

= tegangan

= kuat arus

= ketahanan

Kalau kamu mau mencari tegangan listrik, kamu gunakan rumus V = I.R. Kalau ternyata kamu perlu mencari kuat arus listrik, maka gunakan rumus I = V/R. Nah, kalau yang kamu cari adalah hambatan listrik, maka gunakan rumus R = V/I.

4 0
3 years ago
A student places her 490 g physics book on a frictionless table. She pushes the book against a spring, compressing the spring by
Paul [167]

Answer:

book speed is 3.99 m/s

Explanation:

given data

mass m = 490 g = 0.490 kg

compressing x = 7.10 cm = 0.0710 m

spring constant k = 1550 N/m

to find out

book speed

solution

we know energy is conserve so

we can say

loss in spring energy is equal to gain in kinetic energy

so

\frac{1}{2}*k*x^2 = \frac{1}{2}*m*v^2    ..................1

put here value

\frac{1}{2}*1550*0.071^2 = \frac{1}{2}*0.490*v^2

v = 3.99 m/s

so book speed is 3.99 m/s

5 0
3 years ago
A jet plane lands with a velocity of +107 m/s and can accelerate at a maximum rate of -5.18 m/s2 as it comes to rest. From the i
Marrrta [24]

Answer:

20.7 s

Explanation:

The equation to calculate the velocity for a uniform acceleration a, time t and initial velocity v₀:

v = a*t + v₀

Solve for t:

t = (v - v₀)/a

3 0
3 years ago
Acceleration is defined as the change in velocity divided by
mihalych1998 [28]

Answer:

change in time

Explanation:

8 0
3 years ago
When pushing on a wall while wearing skates, what provides the force that causes you to accelerate away from the wall?
Kruka [31]
Vision and there lies
5 0
2 years ago
Other questions:
  • A 35 kg child moves with uniform circular motion while riding a horse on a carousel. The horse is 3.2 m from the carousel's axis
    14·2 answers
  • Select all the correct answers.
    15·2 answers
  • PLEASE HELP! Compare and contrast between reflection and refraction. Be sure to be specific in your explanation and state in you
    15·1 answer
  • Object A of mass M is released from height H, whereas object B of mass 0.5M is released from height 2H. What is the ratio of the
    9·1 answer
  • Which statement is true about a polarized object?
    9·2 answers
  • Barbara places an object in front of a mirror. The mirror produces an image that is inverted, real, and smaller than the object.
    12·1 answer
  • The rectangular coordinates of a point are (5.00, y) and the polar coordinates of
    14·1 answer
  • Two rods, one made of brass and the other made of copper, are joined end to end. The length of the brass section is 0.400 m and
    6·1 answer
  • 2. The light from the Sun reaches Earth in 8.3 minutes. The speed of light is 11,184,681 miles/minute. How far is
    11·1 answer
  • According to one of the laws of thermodynamics, energy cannot be what?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!