Work = force x distance. In units, Joules = Newtons x meters.
So: Work = 50 Newtons x 3 meters
Work = 150 joules. Answer D is correct
FYI - to ace physics, you should learn to identify these values using their fundamental units:
Force = Newtons = Kg·m/s²
Work = joules = kg·m²/s²
Power = watts = kg·m²/s³
In high school physics, If you learn to arrange equations so the units work out properly for the answer, you'll get most problems correct.
Answer:
e. none of these
Explanation:
An object in FREE-FALL on the MOON would experience only acceleration
Answer:
The correct solution is "".
Explanation:
Given:
Power,
P = 1.00 W
Time,
t = 1 sec
Average energy,
E₀ = 78.0 KeV
Or,
=
=
As we know,
⇒
or,
⇒
⇒
⇒
Answer:
50 m
Explanation:
F = ma
10 N = (10 kg) a
a = 1 m/s²
Given:
v₀ = 0 m/s
a = 1 m/s²
t = 10 s
Find: Δx
Δx = v₀ t + ½ at²
Δx = (0 m/s) (10 s) + ½ (1 m/s²) (10 s)²
Δx = 50 m
Answer:
You bite it then you chew the piece you bit off. :)
Explanation: