A is the best choice!!!!!!!
The Force exerted on the student is 100 N
<u>Explanation:</u>
Given data
mass= 40 kg
acceleration= 2.5 m/s2
To find the force, we have the formula
Force= mass × acceleration
Force= 40 ×2.5
Force=100 N
The Force exerted on the student is 100 N
Answer:
58.56 J
Explanation:
Since the formula for gravitational potential energy is:
GE = m x g x h - where m = mass (kg), g = acceleration due to gravity (9.81 m/s²), h = height (m)
GE= 3 x 9.81 x 2
GE = 58.86 J
Hope this helps
Answer:
0.62
Explanation:
A = Amplitude
f = Frequency = 1.85 Hz
= Coefficient of static
g = Acceleration due to gravity = 9.81 m/s²
Angular frequency
Maximum acceleration
Coefficient of static friction between penny and tabletop is 0.62
Answer:
Explanation:
I=Q2- Q1
And I = F. (t2-t1)
t = 0,32s
v = 8,5 m/s
Q = m.v
Q=66,5.8,5 = 565,25 kg.m/s
F. (t2-t1) = 565,25
F.0,32 = 565,25
F = 1766,4 N