Draw the car on the incline. Label the weight and normal forces. Call the direction normal to the incline y, and the direction parallel to the incline x.

If it helps, rotate the incline so that the surface of the incline is flat.

Use trigonometry to determine the components of the weight force. The y component of the weight is:

Wᵧ = mg cos θ

Wᵧ = (1150 kg) (9.8 m/s²) (cos 8.70°)

Wᵧ = 11,100 N

7 0

1 year ago

Calculate the speed of an object that moves 200 m in 4 s?

Rasek [7]

50m/s

I divided the 200m by 4s (so 200/4) to get 50m per second

7 0

2 years ago

A radio station's channel, such as 100.7 fm or 92.3 fm, is actually its frequency in megahertz (mhz), where 1mhz=106hz and 1hz=1

lapo4ka [179]

In order to determine the wavelength, we use the wave equation:

speed = frequency * wavelength

speed of light c = 3 x 10⁸ m/s

Frequency f = 104.1 MHz = 1.041 x 10⁸ Hz

c = fλ
λ = c / f

λ = 3 x 10⁸ / 1.041 x 10⁸
λ = 2.88 meters

The wavelength of the waves is 2.88 meters.

5 0

3 years ago