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Author: Anonymous (page 38,416)

A bullet is fired horizontally at 50 m/s. Ignoring air resis…

Posted on: January 26, 2025 Last updated on: January 26, 2025 Written by: Anonymous
A bullet is fired horizontally at 50 m/s. Ignoring air resistance, what is its horizontal velocity after 2 seconds? A) 0 m/sB) 9.8 m/sC) 50 m/sD) Cannot be determined
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The force of gravity between two masses separated by 1 m is…

Posted on: January 26, 2025 Last updated on: January 26, 2025 Written by: Anonymous
The force of gravity between two masses separated by 1 m is FF. If the distance between the masses is halved, what is the new force? A) 2F2FB) 4F4FC) F/2F/2D) F/4F/4
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A 2 kg object is acted upon by two forces: 10 N10 \, \text{N…

Posted on: January 26, 2025 Last updated on: January 26, 2025 Written by: Anonymous
A 2 kg object is acted upon by two forces: 10 N10 \, \text{N} to the right and 4 N4 \, \text{N} to the left. What is its acceleration? A) 3 m/s23 \, \text{m/s}^2B) 2 m/s22 \, \text{m/s}^2C) 4 m/s24 \, \text{m/s}^2D) 6 m/s26 \, \text{m/s}^2
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An arrow is shot horizontally at 50 m/s. How far does it fal…

Posted on: January 26, 2025 Last updated on: January 26, 2025 Written by: Anonymous
An arrow is shot horizontally at 50 m/s. How far does it fall vertically after 3 seconds? (Take g=10 m/s2g = 10 \, \text{m/s}^2) A) 30 mB) 45 mC) 90 mD) 150 m
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The area under a velocity-time graph represents what quantit…

Posted on: January 26, 2025 Last updated on: January 26, 2025 Written by: Anonymous
The area under a velocity-time graph represents what quantity? A) SpeedB) DisplacementC) AccelerationD) Force
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When does frictional force become independent of the surface…

Posted on: January 26, 2025 Last updated on: January 26, 2025 Written by: Anonymous
When does frictional force become independent of the surface area of contact? A) AlwaysB) Only in the case of kinetic frictionC) Only in the case of static frictionD) When the object moves at constant speed
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Hooke’s Law applies to: A) Perfectly elastic materialsB) Pla…

Posted on: January 26, 2025 Last updated on: January 26, 2025 Written by: Anonymous
Hooke’s Law applies to: A) Perfectly elastic materialsB) Plastic deformationC) Both elastic and plastic materialsD) Only brittle materials
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A car starts from rest and accelerates uniformly at 2 m/s² f…

Posted on: January 26, 2025 Last updated on: January 26, 2025 Written by: Anonymous
A car starts from rest and accelerates uniformly at 2 m/s² for 5 seconds. What is its final velocity? A) 5 m/sB) 10 m/sC) 15 m/sD) 20 m/s
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A cannon fires a projectile at 50 m/s at an angle of 60°. Wh…

Posted on: January 26, 2025 Last updated on: January 26, 2025 Written by: Anonymous
A cannon fires a projectile at 50 m/s at an angle of 60°. What is the maximum height reached? (Take g=10 m/s2g = 10 \, \text{m/s}^2) A) 50 mB) 62.5 mC) 75 mD) 125 m
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A vehicle decelerates uniformly from 30 m/s to rest in 10 se…

Posted on: January 26, 2025 Last updated on: January 26, 2025 Written by: Anonymous
A vehicle decelerates uniformly from 30 m/s to rest in 10 seconds. What is its acceleration? A) −3 m/s2-3 \, \text{m/s}^2B) 3 m/s23 \, \text{m/s}^2C) −2 m/s2-2 \, \text{m/s}^2D) 2 m/s22 \, \text{m/s}^2
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