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timurjin [86]
2 years ago
5

An object is moving on a horizontal frictionless surface. if the net force applied to the object in the direction of motion is d

oubled, the magnitude of the acceleration of the object is
1. halved
2. doubled
3. unchanged
4. quadrupled
Physics
1 answer:
sukhopar [10]2 years ago
5 0

Answer:

doubled

Explanation:

F=ma1----------(1)

2F = ma2-------(2)

Divide 2nd equation by 1st one

we get a1×2=a2

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Please Help!
irga5000 [103]

The maximum force that the tires can exert on the road before slipping is 16200 N.

From the information in the question;

The coefficient of static friction =  0.9

The mass of the car = 1800 kg

Using the formula;

μ = F/R

μ  = coefficient of static friction

F = force on the tires

R = the reaction force

But recall that the reaction is equal in magnitude to the weight of the car.

W=R

Hence; R = 1800 kg × 10 ms-2 = 18000 N

Making F the subject of the formula;

F = μR

Substituting values;

F =  18000 N × 0.9

F = 16200 N

Hence, the maximum force that the tires can exert on the road before slipping is 16200 N.

Learn more: brainly.com/question/18754989

6 0
3 years ago
How much time does it take light to travel from the moon to the earth, a distance of 384000 km?
Natali5045456 [20]

Answer:

1.28second

Explanation:

The speed of light is constant everywhere, it is

299,792,458m/s=299,792.458km/s

Therefore it takes

\frac{384000}{299792458}  = 1.28sec

6 0
1 year ago
A baseball has a mass of 0. 45 kg and is thrown with a speed of 25 m/s. What is the momentum of the baseball? 0. 018 kg • mete
aleksandr82 [10.1K]

Answer:

11 Kg.m/s

Explanation:

P=mv

P=0.45*25

P=11.25 Kg.m/s

3 0
2 years ago
Which type of friction force acts when there is no motion?
rosijanka [135]
Its called static friction.
3 0
3 years ago
This question is about sound waves and light waves.
kenny6666 [7]

Answer:

you had it right

Explanation:

4 0
3 years ago
Read 2 more answers
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