A boat coasts under a bridge at a constant speed, and while moving under the bridge a large sack is dropped onto the boat from the top of a bridge. The speed of the boat will a) decrease, b) increase, c) stay the same or d) could slow down or speed up depending on the mass of the sack.

Q: Two objects one having three times the mass of the other, are dropped from the same height in a…

A:

Q: Which of the following statements is false regarding an object thrown upward from the ground and…

A: Given data: An object is thrown upward from the ground Object falls back to the original height Air…

Q: g) Q: Which object is accelerating faster? A or B? B A h) Q: Which object is slowing down? A, B, or…

A: The acceleration of the particle is given by Where v = velocity of the particle

Q: You are driving a late model convertible car at the 65 mph speed limit with its soft flexible roof…

A:

Q: Two students stand face-to-face, then push each other away. One student has a mass of 90.0kg; the…

A: Given, m1= 90kg m2= 60kg Initial velocities of both objects are 0. Final velocity of m1 is v1. Final…

Q: A potted plant rests on a window frame above the ground.  The potted plant is off the frame and…

A: Given: A potted plant rests on a window frame above the ground. The time taken by a potted plant to…

Q: If you toss a ball upward with an initial speed v = 2m/s, it reaches a max height h without air…

A: Given data:  Original initial velocity (v) = 2 m/s, vertically upward  Maximum height = h New…

Q: 5a) Assuming that the cart started at rest at the point x = 0.0 m when t = 0.0 s, what was the…

A: a) During the first three seconds, the acceleration graph is a straight line with a slope of 2.0…

Q: O b. VA - VB 2ad O e. VA - VB > V2ad

A: First we find that the relative speed between car is Va-Vb  Then we apply third equation of motion…

Q: A speedboat moving at 32.0 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the…

A: Given data: Initial velocity of speedboat is, u=32.0 m/s. Distance covered is, s=100 m. Acceleration…

Q: The brakes of a car whose initial velocity is 30 m/s are applied, and the car receives an…

A: (Note: The questions here given as 1. and 2. are same. So, here I am taking it as a single question…

Q: A parcel is connected to a flying drone as illustrated above. Note that the coordinate system is…

A: Given that: At t=0, drone+parcel is at ground, y=0Uniform upward velocity of drone+parcel, u=8.40…

Q: a car covers 40 m in 9.45 s  while uniformly slowing down to a final velocity of 2.5 m/s a) find the…

A: Solution: Given that d = 40 m t = 9.45 s final velcity v =2.5 m/s

Q: When cleaning out his impressive collection of chalkboard chalk, . JohN finds a creepy looking bug…

A: Given:bug's inital speed, vi = 1.5 m/sTime at which the vacuum is switched on, t= 3sde-acceleration…

Q: A rock is dropped from 20 feet above the surface of the Earth. Which of the following is true? a.…

A: Given quantities: height from which a rock is dropped (H) = 20 feet initial velocity (u) = 0…

Q: kg. The average speed of a nitrogen molecule in air is about 6.70 x 10² m/s, and its mass is about…

A:

Q: A firecracker is fired from rest and its gunpowder delivers a constant upward acceleration of 8 m/s?…

A: Given information: The acceleration upward provided by the gun powder (a) = 8 m/s2  The time for…

Q: The displacement covered by an object during its motion is: a) always greater than the distance…

A: To determine The correct option

Q: A convertible with a soft cloth roof drives at 85 mph. What happens to the roof?

A: When the convertible with a soft cloth roof is moving at 85 mph, the velocity of the air over the…

Q: A caterpillar's speed decreases from 0.60cm/s to 0.35cm/s at a rate of -0.05m/s2 as it climbs a…

A:

Q: A basketball player jumps straight up for a ball. To do this he lowers his body 0.28 m then…

A:

Q: 4. A boat moves slowly inside a marina (so as not to leave a wake) with a constant speed of 1.50…

A: Given: The initial speed of the boat is u = 1.5 m/s The acceleration of the boat is a = 2.4 m/s2 The…

Q: / Tuo metal balls are the sanme size but one weights twice as much as the othera The balls are…

A:

Q: distance d

A:

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: