3a. Three smart gates are evenly spaced on a tilted track. The separation between two adjacent gates is 30.0cm. When a r
Posted: Sun Jul 17, 2022 7:54 pm
3a. Three smart gates are evenly spaced on a tilted track. Theseparation between two adjacent gates is 30.0cm. When a racquetballrolls down the track, it passes the top gates with a speed 0.67m/sthe middle gate with a speed 0.87m/s. What is its speed (in unit ofm/s) when passing the bottom gate? 1.03m/s 1.04m/s 1.05m/s 1.06m/s1.07m/s
b. Two smart gates are 40.0cm apart on a tilted track. Startingfrom rest, a racquetball rolls down the track. It passes the firstgate with a speed 0.94m/s, the second gate 1.47m/s. How long (inunit of meter) is the starting point of the ball to the first gate?Group of answer choices 0.214m 0.277m 0.310m 0.40m
c. Which one of the following can NOT be a valid unit ofacceleration? Group of answer choices M i l e H o u r 2 F t s e c 2M e t e r M i n u t e
d.How many centimeter are equivalent to 0.61 meter?
e. This problem may sound very different from this week'sexperiment, but since free fall is also a one-dimensional motionwith constant acceleration, the same physics covered in theexperiment can be applied the same way.
f.A base ball is thrown straight up with an initial speed 8.93 ms . How high above its release point can it reach? (Hint: pleasenote that the initial velocity and the acceleration of the ball arein opposite direction.) This problem may sound very different fromthis week's experiment, but since free fall is also aone-dimensional motion with constant acceleration, the same physicscovered in the experiment can be applied the same way. For a baseball dropped from rest, what is its speed (in unit of m s ) afterit falls 1.1m?4
b. Two smart gates are 40.0cm apart on a tilted track. Startingfrom rest, a racquetball rolls down the track. It passes the firstgate with a speed 0.94m/s, the second gate 1.47m/s. How long (inunit of meter) is the starting point of the ball to the first gate?Group of answer choices 0.214m 0.277m 0.310m 0.40m
c. Which one of the following can NOT be a valid unit ofacceleration? Group of answer choices M i l e H o u r 2 F t s e c 2M e t e r M i n u t e
d.How many centimeter are equivalent to 0.61 meter?
e. This problem may sound very different from this week'sexperiment, but since free fall is also a one-dimensional motionwith constant acceleration, the same physics covered in theexperiment can be applied the same way.
f.A base ball is thrown straight up with an initial speed 8.93 ms . How high above its release point can it reach? (Hint: pleasenote that the initial velocity and the acceleration of the ball arein opposite direction.) This problem may sound very different fromthis week's experiment, but since free fall is also aone-dimensional motion with constant acceleration, the same physicscovered in the experiment can be applied the same way. For a baseball dropped from rest, what is its speed (in unit of m s ) afterit falls 1.1m?4