Topic
Q:
\begin{tabular}{l} uah gaya 60 N bekerja pada sebuah lemari. Gaya tersebut mengakibatkan lemari \\ geser sejauh 5 m . Besar usaha adalah .... \\ \hline 0 joule \\ \hline 20 joule \\ \hline 80 joule \\ \hline 00 joule \end{tabular}
Q:
vector
Un vector tiene una magnitud de 10 N y forma un
ángulo de \( 30^{\circ} \) con el eje \( x \). Encuentra sus
componentes \( V_{x} \) y \( V_{y} \).
Q:
\begin{tabular}{l} Sebuah peluru bermassa \( 0,06 \mathrm{~kg} \) ditembakkan dengan kelajuan \( 30 \mathrm{~m} / \mathrm{s} \). Energi kinetik \\ peluru adalah.... \\ A. 27 joule \\ \hline\end{tabular}
Q:
Sebuah peluru bermassa \( 0,06 \mathrm{~kg} \) ditembakkan dengan kelajuan \( 30 \mathrm{~m} / \mathrm{s} \). Energi ki
peluru adalah ....
A. 27 joule
Q:
Ahmad runs half the distance to school
and walks for the remaining part of the
joumey. He runs at \( 3 \mathrm{~m} / \mathrm{s} \) but slows to
\( 2 \mathrm{~m} / \mathrm{s} \) for the second half of the journey.
He takes 55 minutes to complete the tirp.
Find the distance (in meters) Ahmad has
to travel to reach school.
Q:
Starting from rest, a 2 kg block of wood slides a distance of two
meters down a friction-less slope, as shown. What is the
approximate kinetic energy of the wooden block at the bottom of
the slope?
Q:
Two 58 kg stick figures are performing a stunt as shown in the
diagram below. (Warning: These are professional stunt stick
figures. Don't try this at home.) One stick figure stands on top of
a 7.0 m cliff. A second stick figure stands on a light, inflexible iron
beam balanced over a a large rock. The first stick figure rolls a
256 kg boulder off the edge of the cliff towards the iron beam.
What is the theoretical limit on the height to which the second
stick figure can rise. Assume that stick figures obey the law of
conservation of energy.
Q:
A championship pinballer is about to begin their last shot. They
pull back the spring that propels the pinball 0.020 m . If the pinball
has a mass of 0.081 kg and gets propelled at a velocity of 0.77
\( \mathrm{~m} / \mathrm{s} \), what is the objects spring constant?
Q:
19) Una fuerza neta de \( 10^{7} \) dina actúa durante 10 seg sobre un cuerpo libre de 20 kg de masa
¿Qué distancia recorre el cuerpo, suponiendo que partió del reposo? ¿Qué velocidad fina
alcanza? \( \quad \) Rta. \( \quad \) = \( =250 \mathrm{~m} \quad \mathrm{v}=50 \mathrm{~m} / \mathrm{ses} \)
Q:
17) ¿Cuánto pesará en el Ecuador un cuerpo que bajo la acción de una fuerza de 245 kg
adquiere una aceleración de \( 5 \mathrm{~m} / \mathrm{seg}^{2} \) ? ¿Y cuál es su masa?
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