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
seraphim [82]
3 years ago
8

How do you know the force for an acceleration of zero?

Physics
1 answer:
Natali5045456 [20]3 years ago
5 0
F=ma

So a=F/m

if acceleration is zero, resultant force is also zero.
You might be interested in
A 1500 kg car drives around a flat 200-m-diameter circular track at 25m/s. What are the magnitude and direction of the net force
MakcuM [25]

The correct answer to the question is : 9375 N.

CALCULATION:

As per the question, the mass of the car  m = 1500 Kg.

The diametre of the circular track D = 200 m.

Hence, the radius of the circular path R = \frac{D}{2}

                                                                  = \frac{200}{2}\ m

                                                                  = 100 m.

The velocity of the truck v = 25 m/s.

When a body moves in a circular path, the body needs a centripetal force which helps the body stick to the orbit. It acts along the radius and towards the centre.

Hence, the force acting on the car is centripetal force.

The magnitude of the centripetal force is calculated as -

                              Force F = \frac{mv^2}{R}

                                            =  \frac{1500\times (25)^2}{100}\ N

                                            = 9375 N.           [ANS}        

The centripetal force is provided to the car in two ways. It is the friction which provides the necessary centripetal force. Sometimes friction is not sufficient. At that time, the road is banked to some extent which provides the necessary centripetal force.


6 0
3 years ago
QUICK giving brainlyest
Soloha48 [4]

The momentum of the second ball was 15 kg.m/s.

<h3>What is inelastic collision?</h3>

In which collision some amount of kinetic energy of the system is lost that called inelastic collision. In purely inelastic collision, two bodies stick together. But principle of conservation of linear momentum is obeyed.

In the given question,

Two balls collide and after collision, the final momentum of the system = 18 kg.m/s.

Initial velocity of 1st ball of mass 3 kg is 1 m/s.

So, Initial momentum of first ball = mass × velocity = (3 kg) × (1 m/s) = 3 kg.m/s.

According to Principle of conservation of linear momentum for this inelastic collision,

Initial momentum of first ball + initial momentum of second ball =  final momentum of the system

⇒   initial momentum of second ball =   final momentum of the system - Initial momentum of first ball

= 18 kg.m/s - 3 kg.m/s.

= 15 kg.m/s.

Hence, initial momentum of second ball = 15 kg.m/s.

Learn more about momentum here:

brainly.com/question/24030570

#SPJ2

5 0
1 year ago
Read 2 more answers
PLEASE HELP!!! WILL MARK BRAINLIEST!! Name and define the four fundamental forces.
alukav5142 [94]

Answer:

Gravity.The weak force. Electromagnetism.The strong force.

4 0
3 years ago
Read 2 more answers
Why do the other bulbs go dark when one bulb is removed in the series circuit but the other bulbs do not go dark when one bulb i
yan [13]

Answer:

I think this

One bulb burning out in a series circuit breaks the circuit. In parallel circuits, each light has its own circuit, so all but one light could be burned out, and the last one will still function.

5 0
1 year ago
To lift an object, you must pull upward on the object with a force __________ to the object’s weight.
Rudiy27

Answer:

To lift an object, you must pull upward on the object with a force greater than the object’s weight.

7 0
3 years ago
Other questions:
  • Three beads are placed along a thin rod. The first bead, of mass m1 = 23 g, is placed a distance d1 = 1.1 cm from the left end o
    11·2 answers
  • A photon in a laboratory experiment has an energy of 5 eV. What is the frequency of this photon? (using the idea of the electron
    10·1 answer
  • For the following reaction, 24.8 grams of diphosphorus pentoxide are allowed to react with 13.2 grams of water . diphosphorus pe
    8·1 answer
  • On the EM spectrum, visible light is found between
    14·2 answers
  • PLEASE HELP. THIS IS DUE TODAY AT 11:59PM ​
    9·1 answer
  • Four identical capacitors are connected with a resistor in two different ways. When they are connected as in part a of the drawi
    15·1 answer
  • A jet airplane is in level flight. The mass of the airplane is m=8950 kg. The airplane travels at a constant speed around a circ
    7·1 answer
  • A man is pulling a 20 kg box with a rope that makes an angle of 60 with the horizontal.If he applies a force of 150 N and a fric
    8·1 answer
  • SPEED THAT<br> INCLUDES THE<br> DIRECTION is ____
    14·1 answer
  • The current produced by electromagnetic induction is greater when...
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!