4 years ago

Which of the following is true?

Physics

1 answer:

stellarik [79]4 years ago

5 0

B, you always need a force acting upon it to have an acceleration

You might be interested in

This parallel circuit has three resistors R1-120 ohm; R2-45 ohm: R3=360

Nina [5.8K]

Answer:

the answer is 30 Ohms. Not found in the options provided

5 0

3 years ago

Which statements about braking a car are true? A)The greater the kinetic energy of a car, the longer it takes for the car to sto

NikAS [45]

Answer:

option c

Explanation:

Kinetic energy is due to the speed of a body.

$K.E = \frac{1}{2}mv^2$

When speed is doubled, the kinetic energy is quadruple.

From third equation of motion, braking distance is also proportional to square of speed. Thus, when speed is doubled, the braking distance is quadruple.

Thus, option c is correct.

3 0

3 years ago

Read 2 more answers

When a heavy football player and a light one run into each other, which player hits the other with more force? Explain. Which on

EleoNora [17]

Answer:

When a heavy football player and a light one run into each other, does the lighter player really exert as much force on the heavy player s the heavy player exerts on the light one. Yes. The interaction between the two players, the force each exerts on the other have equal strength.

7 0

3 years ago

A gardener uses 2700 J of work to push a wheelbarrow for 60 seconds. How much power does she use?

Phantasy [73]

Answer:

I think 90 w I am not sure but I think it is right

I hope it is helpful for u

5 0

3 years ago

Read 2 more answers

If the inside of a container has a surface area of 20cm², what will be the pressure on each square inch of the container if 117.

egoroff_w [7]

Answer:

Explanation:

given :-

force applied = 117.6N

Area = 20 m^2

Pressure =?

solution:-

Pressure = Force / Area

= 117.6 N / 20 m^2

= 5.88 Pascals

Hope it helps :D!

Explanation:

6 0

2 years ago