3 years ago

Consider the four free body diagrams. In which case does the net force equal 15N up

Physics

1 answer:

Mila [183]3 years ago

3 0

The answer is D.

40-25=15.

Hope this helps.

You might be interested in

A ray of yellow light ( f = 5.09 × 1014 hz) travels at a speed of 2.04 × 108 meters per second in

SashulF [63]

Velocity = fλ

where f is frequency in Hz, and λ is wavelength in meters.

2.04 * 10⁸ m/s = 5.09 * 10¹⁴ Hz * λ 

(2.04 * 10⁸ m/s) / (5.09 * 10¹⁴ Hz ) = λ 

4.007*10⁻⁷ m = λ 

The wavelength of the yellow light = 4.007*10⁻⁷ m

6 0

3 years ago

a soccer player is running at 6m/s. he then stumbles over an opponents foot falling, and rolling to a stop. this took 4 seconds.

Natali [406]

$a = \frac{(vf - vi)}{t} \\ a = \frac{0 - 6}{4} \\ a = - 1.5 \frac{m}{ {s}^{2} }$
top one is the formula
mid- i plug in the numbers
bottom- answer

8 0

4 years ago

Read 2 more answers

A 0.500 kg football is thrown with a speed of 15.0 m/s. A stationary receiver catches the ball and brings it to rest in 0.020 s.

Marizza181 [45]

Answer:

$Imp = 7.5\,\frac{kg\cdot m}{s}$

Explanation:

Let assume that direction is positive when football travels to the player. The situation can be described properly by applying the definition of Momentum and Impulse Theorem. That is to say:

$(0.5\,kg)\cdot (15\,\frac{m}{s}) - F \cdot (0.02\,s) = 0\,kg\cdot \frac{m}{s}$