The Acceleration of a Race Car as a Function of Time

question 9

Multiple Choice

The acceleration of a race car as a function of time is a(t) = kt,where a is measured in meters per second squared,t is measured in seconds and k is a constant.If its velocity at t = 0 is 2 m/s,and it is 26 m/s at t = 2 s,what is the value of the constant,k?

• A)12 m/s³
• B)12 m/s²
• C)24 m/s³
• D)24 m/s²
• E)13 m/s³

Recognize the roles of actin and myosin in muscle contraction and their interaction mechanism.

Identify the unique structures and properties of different muscle types (smooth, cardiac, and skeletal).

Describe the role of the sarcoplasmic reticulum and calcium in muscle contraction.

Explain the concept of muscle excitability and how action potentials are related to muscle contractions.

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