The graph in the figure shows the net force acting on a 3.0-kg object as a function of time. 
(a) What is the acceleration of this object at time t = 2.0 s?
(b) Draw, to scale, a graph of the acceleration of this object as a function of time over the range t = 0.00 s to t = 7.0 s.
Definitions:
Excessive Exercise
Engaging in physical activity to an extent that may lead to negative health outcomes, often driven by psychological factors such as body image concerns.
Substance/Medication-Induced Sexual Dysfunction
A specific substance presumed to cause the sexual dysfunction.
Heroin Addiction
A severe substance use disorder characterized by a dependence on heroin, affecting physical and mental health.
Erection and Ejaculation
Physiological phenomena in male sexuality where erection is the stiffening of the penis, and ejaculation is the release of semen.
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