Slanting Surfaces With Friction: A 5.0-kg box slides on the surface on a ramp that rises at 37° above the horizontal. The coefficient of kinetic friction between the box and the surface of the ramp is 0.60. What are the magnitude and direction of the acceleration of the box if it is sliding (a) up the ramp, (b) down the ramp?

What will be an ideal response?


(a) 11 m/s2 down the ramp (b) 1.2 m/s2 down the ramp

Physics & Space Science

You might also like to view...

What causes Mercury's 3:2 spin-orbit resonance?

A) the planet's closeness to the Sun B) the planet's very eccentric orbit C) the planet's high density D) tidal torques operating on the planet E) All of the above are factors.

Physics & Space Science

Why is oxygen the most common element in Earth's crust, but not in Earth as a whole?

What will be an ideal response?

Physics & Space Science

According to current theories, how did the sun's planets get here?

A) Stars such as the sun, and planets such as those around the sun, all formed shortly after the big bang, and then gathered into "solar systems" such as we see today. B) Part of the gas and dust that gathered together to form the sun went into orbit around the sun instead of falling into the sun, and this part formed the planets. C) The sun was originally part of the two-star system, the second star split up into pieces, and these pieces developed into the planets. D) A passing star tore off part of the sun, and this part separated into pieces to form the planets. E) After the sun had formed, it gathered fully-formed planets from various places as the sun moved through the galaxy.

Physics & Space Science

A car horn emits a frequency of 400 Hz. A car traveling at 20.0 m/s sounds the horn as it approaches a stationary pedestrian

What frequency does the pedestrian hear? The speed of sound in air is 343 m/s. A) 200 Hz B) 375 Hz C) 400 Hz D) 425 Hz E) 450 Hz

Physics & Space Science