To find the answer, take 55 and divide it by 1.85 to get the thickness of one card. In this case the answer would be 29.72973 cm. each.
P = √ [(px)^2 + (py)^2]
we know that px is 100 kg m/sec
and we know that py is 98 m/sec
So, to find out the momentum, you just need to insert the number into the equation
p = √(v1^2 + v2^2)
<span>p = </span>√<span>(98^2 + 100^2) </span>
<span>p = 140.01 </span>
<span>p = 1.4 x 10^2 k m/s</span>
Answer:
7.53 m
Explanation:
Force, F = 47 N
initial velocity, u = 0
Final kinetic energy, Kf = 354 J
Let the distance traveled by the student is s.
According to the work energy theorem,
Work done by all forces = Change in kinetic energy
Force x distance = final kinetic energy - initial kinetic energy
F x s = kf - ki
47 x s = 354
s = 7.53 m
Answer:
frequency =speed/wavelength
=(3*10^8)/150
=2×10^6
Answer:
Explanation:
According to a free body diagram the forces in the horizontal direction on body 1 would be:
F₁ = a₁*m₁ = -N
and on body 2:
F₂ = a₂*m₂ = N - F
N: normal force between the two blocks
F: frictional force on block 2
Since the two blocks are moving together, they need to have the same acceleration:
a₁ = a₂
This gives two equations with two unknown. Solving for a and N gives:
case A:
|a| = 0.96 m/s²
|N| = 2.9 N
case B:
|a| = 0.644 m/s²
|N| = 3.86 N