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
rusak2 [61]
2 years ago
12

A racecar drives at a constant speed down a straight track. The car is in _?_

Physics
1 answer:
vagabundo [1.1K]2 years ago
7 0

Answer:

the answer is

the car is in motion

You might be interested in
Determine the magnitude of the resultant force acting on a 1.5 −kg particle at the instant t=2 s, if the particle is moving alon
Phoenix [80]

Answer:

F = 63N

Explanation:

M= 1.5kg , t= 2s, r = (2t + 10)m and

Θ = (1.5t² - 6t).

magnitude of the resultant force acting on 1.5kg = ?

Force acting on the mass =

∑Fr =MAr

Fr = m(∇r² - rθ²) ..........equation (i)

∑Fθ = MAθ = M(d²θ/dr + 2dθ/dr) ......... equation (ii)

The horizontal path is defined as

r = (2t + 10)

dr/dt = 2, d²r/dt² = 0

Angle Θ is defined by

θ = (1.5t² - 6t)

dθ/dt = 3t, d²θ/dt² = 3

at t = 2

r = (2t + 10) = (2*(2) +10) = 14

but dr/dt = 2m/s and d²r/dt² = 0m/s

θ = (1.5(2)² - 6(2) ) = -6rads

dθ/dt =3(2) - 6 = 0rads

d²θ/dt = 3rad/s²

substituting equation i into equation ii,

Fr = M(d²r/dt² + rdθ/dt) = 1.5 (0-0)

∑F = m[rd²θ/dt² + 2dr/dt * dθ/dt]

∑F = 1.5(14*3+0) = 63N

F = √(Fr² +FΘ²) = √(0² + 63²) = 63N

7 0
3 years ago
Someone plzzz helpppppp with this last question
vredina [299]

Answer:

I dont know someone deleted answers. But they were wrong. INERTIA IS CORRECT I DID THIS IN MY SCHOOL

C IS CORRECT

7 0
3 years ago
What is the S.I. unit of drift velocity and electron mobility?
Degger [83]
<span>We use m/s for the velocity, and m2/(V·s) for the </span><span>mobility.</span>
7 0
3 years ago
We reduce friction in machines? why<br>​
kvv77 [185]

Answer:

friction reduces the efficiency of machines, thus we must reduce the friction force that is acting upon it.

5 0
3 years ago
Read 2 more answers
What is a physiotherapist <br>​
iragen [17]
Physiotherapists help people affected by injury, illness or disability through movement and exercise, manual therapy, education and advice
6 0
3 years ago
Read 2 more answers
Other questions:
  • _______ do not have definite size or always take the shape of their container?
    13·2 answers
  • As a planet's semimajor axis gets smaller, its speed will _______ and its period will _________ .
    9·1 answer
  • What is the best use of an atomic model to explain the charge of the particles in thomson's beams
    8·1 answer
  • In January 2006, astronomers reported the discovery of a planet comparable in size to the earth orbiting another star and having
    14·1 answer
  • Two satellites are in circular orbits around the earth. The orbit for satellite A is at a height of 403 km above the earth’s sur
    15·1 answer
  • Most of the energy consumed in the U.S. is stored in which form of<br><br> energy
    14·1 answer
  • An object has a mass of 0.250 kg. What is the gravitational force of on the object by the earth?
    14·1 answer
  • How much power do you have if you do 3200 j of work in 18 seconds?
    6·2 answers
  • If a rock is thrown vertically upward from the surface of Mars with velocity of 20 m/s, its height (in meters) after t seconds i
    15·1 answer
  • The acceleration of a block attached to a spring is given by a=−(0.324m/s2)cos([2.50rad/s]t) a = − ( 0.324 m / s 2 ) c o s ( [ 2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!