What force is required to accelerate a 1840 kg car from 4.77 m/s to 23.5 m/s,

1 answer:

7 0

A :-) for this question , we should apply
a = v - u by t
Given - u = 4.77 m/s
v = 23.5 m/s
t = 5.18 m/s
Solution -
a = v - u by t
a = 23.5 - 4.77
a = 28.27 m/s^2

.:. The acceleration is 28.27 m/s^2

You might be interested in

A plane travels 350 km south along a straight path with an average velocity of 125 km/h to the south. The plane has a 30 minute

faust18 [17]

Average Velocity = Total Displacement / Total time

1st part of journey, 350 km at velocity 125 km/h

Time = 350 / 125 = 2.8 hours.

2nd part of journey, 220 km at velocity 115 km/h

Time = 220 / 115 = 1.9 hours

Average Velocity = Total Displacement / Total time

= (350 + 220) / (2.8 + 1.9)

= 570 / 4.7 ≈ 121.3 km/hr

Average Velocity ≈ 121 km/hr due south.

Option C.

6 0

3 years ago

Which of the following best describes transverse waves?

den301095 [7]

Best Answer: perpendicular to the direction of wave motion

think of you and a friend holding different ends of a rope. you shake your end side to side and the wave travels down to your friend's end. if you pay attention to a given segment of the rope, it moves, but it moves to the right and left while the wave travels forward. in a transverse wave, the constituents of the wave move perpendicular to the direction of motion of the wave itself.

a longitudinal wave, on the other hand, is the opposite. the constituents of the wave alternate moving in the same or opposite direction as the wave moves. this one is more like if you and your friend were holding onto a slinky. you give your end a push towards your friend, and you can see the wave move towards the other end.

hope that helps :D

5 0

3 years ago

Read 2 more answers

What is the kinetic energy of a 7.56 kg bowling ball that is rolling at a speed of 2 m/s ?

postnew [5]

Answer:

K.E=?

Mass=7.56 kg

Velocity=2m/s

Solution::

K.E = 1/2mv^2

K.E=0.5*7.56*(2)^2

K.E= 0.5*7.56*4

K.E=15.12 joules.

7 0

3 years ago

The age of the universe is thought to be about 14 billion years. Assuming two significant figures, write this in powers of ten i

ira [324]

A ) 14 billion years = 14,000,000,000
$1.4 * 10^{10}$
b ) 1 year = 365 · 24 · 3,600 = 31,536 · 10³
$1.4 * 10 ^{10}*3.1536 * 10^{7} =4.4 * 10 ^{17}$

6 0

3 years ago

Read 2 more answers

Describe the difference in using an algorithm and a heuristic to solve a problem.

Svetllana [295]

Algorithms are a set of well-defined instructions for carrying out a certain task. It must be sound and complete, while a heuristic is something that helps you look for an answer. Its results are subject to chance. Heuristics only tell you what to look for. Not what to find.

3 0

3 years ago

Read 2 more answers