The acceleration of a ball as it rolls down a ramp is 4 m/s2 . The ball is referred to 2 s after it starts to roll. The distance from the starting point in meters is
a. 0 d. 8
b. 2 e. 16
c. 4
D
You might also like to view...
Ultraviolet light is shone on a piece of metal that has a known work function, and electrons are observed being produced through the interaction of the light with the metal. The lamp that produces the light is now replaced with a lamp of the same intensity, but which produces photons having a shorter wavelength. Which of the below differences is observed?
A. Fewer electrons per unit time are produced. B. More electrons per unit time are produced. C. Nothing changes at all. D. Electrons with a higher maximum energy are observed. E. Electrons with lower maximum energy are observed.
Spicules can trigger communications blackouts and auroras on Earth
a. True b. False Indicate whether the statement is true or false
Two identical grasshoppers jump with the same initial speed. Grasshopper A goes straight up, but grasshopper B goes up at a 66° angle above the horizontal. Assume no air resistance and choose your system to be grasshopper-Earth
Which of the following statements about these grasshoppers are correct? (There could be more than one correct choice.) A) At their highest point, both systems have the same amount of gravitational potential energy. B) At their highest point, both systemshave the same amount of kinetic energy. C) At their highest point, both systemshave the same amount of mechanical energy. D) At their highest point, grasshopper B is moving faster than grasshopper A. E) At their highest point, the system grasshopper A-Earth has more gravitational potential energy than the system grasshopper B-Earth.
Ralph walks 3 m to the left in 2 seconds, then 4 m to the right in 3 seconds. Next, he stops for 3 seconds, and finally walks 5 m to the left in 4 seconds
The distance Ralph travels is closest to:
1.0 m 2.2 m 3.4 m 4.6 m 5.8 m 6.10 m 7.12 m 8.14 m 9.The negative of one of the choices above 10.Impossible to determine