A Cart Starts from Rest and Accelerates Uniformly at 4

question 29

Multiple Choice

A cart starts from rest and accelerates uniformly at 4.0 m/s² for 5.0 s.It next maintains the velocity it has reached for 10 s.Then it slows down at a steady rate of 2.0 m/s² for 4.0 s.What is the final speed of the car?

• A)20 m/s
• B)16 m/s
• C)12 m/s
• D)10 m/s

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Definitions:

Lysosomes

Organelles in eukaryotic cells containing digestive enzymes, responsible for breaking down waste materials and cellular debris.

Mitochondria

Cell organelles responsible for the production of ATP, the energy currency of the cell, through the process of cellular respiration.

Golgi Apparatus

A cell organelle that modifies, sorts, and packages proteins and lipids for secretion or for use within the cell, playing a key role in the transport and delivery system of the cell.

Mucus Cell

A cell that secretes mucus, providing lubrication and protection on mucosal surfaces such as the digestive and respiratory tracts.