A Bullet Is Fired from Ground Level with a Speed

question 65

Multiple Choice

A bullet is fired from ground level with a speed of 150 m/s at an angle 30.0° above the horizontal at a location where g = 10.0 m/s². What is the horizontal component of its velocity after 4 seconds?

• A) 150 m/s
• B) 35 m/s
• C) 130 m/s
• D) 75.0 m/s
• E) 37.5 m/s

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Definitions:

Hardened Steel

Steel that has been treated through a heating and cooling process to increase its hardness and strength, making it resistant to wear and tear.

Low Hydrogen

Low hydrogen refers to specific types of welding electrodes that produce welds with lower hydrogen content, reducing the risk of hydrogen embrittlement and cracks in welded metals.

Arc Welding Electrodes

Consumable or non-consumable pieces of metal in arc welding that conduct a current to join metallic parts.

Tempered Steel

Steel that has been heat-treated to increase its strength and durability through a process of heating and cooling.