2 minutes = 120 seconds
120/15 = 8
The black horse corresponds to 8 seconds.
The second question necessitates a figure to provide an answer. For the initial question
The acceleration of the sack is
1.5² - 0² = 2a(0.2)
a = 5.63 m/s²
The ramp's reaction force is
F = 8 kg (5.63 m/s²)
F = 45 N
Differentiate the kinematic equation with respect to time to find the velocity's rate of increase.
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<span>d) Infrared photons have insufficient energy to bridge the gap, which leads to only partial absorption, in contrast to how visible photons are entirely absorbed.</span>
