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
blsea [12.9K]
3 years ago
11

The displacement ‘s' of a point moving in a straight line is given by: s = 6t^2 + 5t – 5, ‘s' being in cm and ‘t' in s. The init

ial velocity of the particle is:
Physics
1 answer:
Ivan3 years ago
6 0

Answer:

the initial velocity of the particle is 5 cm/s

Explanation:

Given initial displacement as, s = 6t² + 5t - 5

s is measured in "cm"

t is measured in "seconds"

Velocity is the rate of change of displacement with time. Expressed as follows;

v = \frac{ds}{dt} = 12t + 5

for initial velocity, time (t) = 0

v = 12(0) + 5

v = 5 cm/s

Therefore, the initial velocity of the particle is 5 cm/s

You might be interested in
An object at rest increases its velocity to 10 m/s in 3 seconds. what is its acceleration?
Anna11 [10]

Answer:

30m

Explanation:

10m per second

there is 3 seconds

10 times 3 is 30

4 0
4 years ago
When is a sailboat the stand on vessel in relations to a recreational power boat?
qwelly [4]
The stand-on vessel is the one that is on the starboard side of a boat, and its red light or streamer is visible to you. The situation where a sailboat would be the stand-on vessel will be then the sailboat is overtaking the power boat.

The opposite of a stand-on vessel is the give-way vessel, which is on the port side, the green light or streamer of which is visible to you.
8 0
3 years ago
On the Moon's surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. The distanc
Arisa [49]

Answer:

Explanation:

The difference in time will be due to travel through atmosphere where speed of light slows down. If t be the thickness of atmosphere and c be the speed of light in space and μ be the refractive index of atmosphere difference in travel time will be as follows .

difference = \frac{2t\mu }{c}-\frac{2t }{c}

=\frac{2t}{c }\left ( 1-\mu  \right )

Now t = 40 x 10³m ,μ = 1.000293 , c = 3 x 10⁸.

difference =\frac{2t\mu }{c}-\frac{2t }{c}

=\frac{2t}{c }\left ( \mu -1  \right )\\

=\frac{ 2\times 40\times 10^3}{3\times10^3 }\left ( 1.000293-1 \right )\\

=7.81\times 10^{-3} s

4 0
4 years ago
A car has a mass of 2,500 kg. The car is accelerating at 0.5 m/s2. What is the net force acting on the car?
tekilochka [14]

Answer:

force:mass*acceleration

2500kg*0.5m/s2

1250N

6 0
3 years ago
An archer shoots an arrow into a target using a bow. If the "action" force is the force of the bowstring against the arrow, what
aliya0001 [1]
Weight of an arrow is 20 plus 3
8 0
3 years ago
Other questions:
  • A visitor to a lighthouse wishes to determine the height of the tower. She ties a spool of thread to a small rock to make a simp
    6·2 answers
  • We are able to see an object when it:
    8·2 answers
  • In anticipation of a long 10 upgrade, a bus driver accelerates at a constant rate of 5 ft/s2 while still on a level section of a
    7·1 answer
  • You have a 2.00 kg block of lead. Lead melts at 327.5°C. Cpb = 130.0 J/kg*C and △Hj for lead is 2.04x10^4 J/kg . Say you start a
    5·1 answer
  • A source charge generates an electric field of 1236 N/C at a distance of 4 m. What is the magnitude of the source charge?
    6·2 answers
  • Two 2.00 cm * 2.00 cm plates that form a parallel-plate capacitor are charged to { 0.708 nC. What are the electric field strengt
    10·1 answer
  • Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. The
    15·2 answers
  • A force of 30 N stretches a very light ideal spring 0.73 m from equilibrium. What is the force constant (spring constant) of the
    7·1 answer
  • A 2.5 kg block starts with a speed of 3 m/s, goes down a 4 m hill, and then slides up a new hill but stops when it is only 1.5 m
    13·1 answer
  • According to the superposition principle of waves, A. when two wave pass through the same material they always double in amplitu
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!