Podcast
Questions and Answers
What is the weight (𝑾) of a body defined as?
What is the weight (𝑾) of a body defined as?
- The mass of the body multiplied by acceleration due to gravity
- The mass of the body divided by the acceleration due to gravity
- The gravitational force acting on a body due to all other bodies in space (correct)
- The distance the body travels in space
What is the unit of force in the metric system?
What is the unit of force in the metric system?
- Poundal
- Dyne
- Slug
- Newton (correct)
According to Newton's Third Law of Motion, what can be said about the two forces involved?
According to Newton's Third Law of Motion, what can be said about the two forces involved?
- They are unequal in magnitude and opposite in direction
- They are unequal in magnitude and direction
- They are equal in magnitude and direction
- They are equal in magnitude and opposite in direction (correct)
In the equation 𝑊 = 𝑚𝑔, what does 'm' represent?
In the equation 𝑊 = 𝑚𝑔, what does 'm' represent?
What is the unit of acceleration in the imperial system?
What is the unit of acceleration in the imperial system?
How is weight (𝑾) mathematically calculated using mass (𝑚) and gravity (𝑔)?
How is weight (𝑾) mathematically calculated using mass (𝑚) and gravity (𝑔)?
What type of collision is it when the final kinetic energy is less than the initial kinetic energy?
What type of collision is it when the final kinetic energy is less than the initial kinetic energy?
In a perfectly inelastic collision, what happens to the two objects involved?
In a perfectly inelastic collision, what happens to the two objects involved?
What is the total momentum of two bodies before and after a collision?
What is the total momentum of two bodies before and after a collision?
What does the coefficient of restitution (e) measure in a collision?
What does the coefficient of restitution (e) measure in a collision?
In the equation 𝑚1𝑣1 − 𝑚2𝑣2 = 𝑚2𝑢2 − 𝑚1𝑢1, what does 𝑣1 represent?
In the equation 𝑚1𝑣1 − 𝑚2𝑣2 = 𝑚2𝑢2 − 𝑚1𝑢1, what does 𝑣1 represent?
What was the initial speed of the ship towards the reef?
What was the initial speed of the ship towards the reef?
What was the total constant force exerted by the wind towards the reef?
What was the total constant force exerted by the wind towards the reef?
What was the total force exerted by the frictional drag force of water on the propeller?
What was the total force exerted by the frictional drag force of water on the propeller?
What was the mass of the ship and its cargo?
What was the mass of the ship and its cargo?
What was the distance of the ship from the reef when the rudder jammed?
What was the distance of the ship from the reef when the rudder jammed?
What action did the captain claim to take when he lost control of the ship's direction?
What action did the captain claim to take when he lost control of the ship's direction?
What is the purpose of using a scale when drawing vectors?
What is the purpose of using a scale when drawing vectors?
What is the resultant force in the x-direction (ΣFx) for a series of forces with values 100, -150, -200, and angles of 0°, 30°, 60°, respectively?
What is the resultant force in the x-direction (ΣFx) for a series of forces with values 100, -150, -200, and angles of 0°, 30°, 60°, respectively?
What is the resultant force in the y-direction (ΣFy) for a series of forces with values 100, -150, -200, and angles of 0°, 30°, 60°, respectively?
What is the resultant force in the y-direction (ΣFy) for a series of forces with values 100, -150, -200, and angles of 0°, 30°, 60°, respectively?
What is one application of kinematics on vertical motion of bodies?
What is one application of kinematics on vertical motion of bodies?
What is the main objective of the lesson 'Rectilinear Motion and Projectile'?
What is the main objective of the lesson 'Rectilinear Motion and Projectile'?
How can a passenger on a vehicle compute the distance between equally spaced electric posts?
How can a passenger on a vehicle compute the distance between equally spaced electric posts?
What total force must the ropes holding a swing be able to withstand if the horizontal speed at the lowest point is 3 m/s?
What total force must the ropes holding a swing be able to withstand if the horizontal speed at the lowest point is 3 m/s?
What is the highest speed a 200-gram ball can have at the end of a 1000 cm long string if the string has a breaking point of 4 N?
What is the highest speed a 200-gram ball can have at the end of a 1000 cm long string if the string has a breaking point of 4 N?
If a 1000-g ball is tied to a string and whirled in a vertical circle at 1 revolution per second, what is the speed of the body at the highest point if the tension at the highest point is zero?
If a 1000-g ball is tied to a string and whirled in a vertical circle at 1 revolution per second, what is the speed of the body at the highest point if the tension at the highest point is zero?
If a body is moving along a circular path with a centripetal force three times its weight, what is the period of motion if the radius of the circle is 2.86 m?
If a body is moving along a circular path with a centripetal force three times its weight, what is the period of motion if the radius of the circle is 2.86 m?
Find the angle of banking for a curve along a highway designed for cars moving at 100 kilometers per hour, given that the radius of the curve is 200 m.
Find the angle of banking for a curve along a highway designed for cars moving at 100 kilometers per hour, given that the radius of the curve is 200 m.
While working as a delivery person, what is the minimum angle of banking needed for your truck to safely navigate a curve with a radius of 50 meters while carrying a crate of eggs?
While working as a delivery person, what is the minimum angle of banking needed for your truck to safely navigate a curve with a radius of 50 meters while carrying a crate of eggs?
