A penny is thrown into a well that is 14.5 m deep and it takes 0.800 seconds to fall what is the initial velocity of the penny

Q: A man dives off of a cliff. While he is in the air, how does the magnitude of the force that the…

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Q: If you were to throw an object upwards into the air, what would you expect to happen? (Click all…

A: As the object is moving upward and weight is acting downwards, the free body diagram of the object…

Q: An archer shoots an arrow. The action force is the bowstring against the arrow, The reaction force…

A: Newton's third law of motion tells us that the evry action has an equal and opposite reaction. This…

Q: A gazelle runs off the edge of a cliff. He is launched horizontally with a velocity of 34m/s. The…

A: A vector quantity can be split into multiple components. Velocity is a vector quantity and that's…

Q: A tennis ball is dropped from the top of a tall building. A second tennis ball is thrown down from…

A: A tennis ball dropped from the top of a tall building. A second tennis ball is thrown down from the…

Q: You are driving car ahead lose control goes off road hit a tree. When I get to car driver is slump…

A: Firstly, u should picup the baby and remove him from the car. You should try to stop the babi's…

Q: 2 kg ball hits a 1 kg ball and exerts a 2 N force to accelerate it forward. The second ball pushes…

A: According to Newton's third law of motion , for every action there is an equal and opposite…

Q: Which of the following cause high friction when an object slides across the floor? a rough surface…

A: Answersr are - a rough surface, a heavy object

Q: A ball rolls off of a table that is 1.6 m high at a speed of 30 m/s. How much time (to the hundredth…

A: Height of table (h) = 1.6 m Initial horizontal velocity (u) = 30 m/s

Q: A person crashes the car into a tree Which deploy is the airbag how does the airbag improve the…

A: Airbags are passive safety features designed to mitigate or prevent injuries among drivers and…

Q: The stream of a river is flowing with a speed of 2 km/h. A swimmer can swim at a speed of 4 km/h.…

A:

Q: A ball is dropped from the top of the building . It took 10 seconds for the ball to hit the ground.…

A:

Q: A car accelerates along a road. The force that moves the car is the road that pushes the car along.…

A: Here, it is given that a car accelerates along a road. It is given that the force that moves the car…

Q: :A person is at building-top (50m high). Stone fells down from his hand to reach ground. (A)…

A: Here, v2=u2+2ghv2=0m/s2+29.8m/s250mv=98.99m/s≈99m/s

Q: What is the correct law of motion. A swimmer turns and kicks off from the end of the pool

A: Newton's third law states that whenever there is a action or a force applied than an equal and…

Q: An object sitting on the edge of a table. A bullet shot up into the air before it gets to the top. A…

A: Potential energy is defined as the energy possessed by an object by virtue of its position (height…

Q: A stone is dropped from the rooftop of a tall building. The stone reach the ground after 3 s. What…

A: The forces that influence the motion oft the stone.

Q: A 7kg shot put ball was thrown upward with a force of 100 N. Find the acceleration of the shot put…

A: Force (F) = 100N Mass(M) = 7 kg According to Newton's second law of motion F = Ma a = F/M a = 100/7…

Q: A ball is dropped from the top of a building. It took 10 seconds for the ball to hit the ground.…

A: Given data:  Ball dropped from top of a building  Initial velocity (Vi) = 0 m/s Time (t) = 10 s…

Q: Calculate the accelerating force of the car engine.

A: We are given that                       m=1500 kg                       u=0 m/s…

Q: A 10.0 kg barrel is lifted by pulling up on a rope. The barrel accelerates at 1.5 m/s. Find the…

A: Given data: Mass (m) = 10.0 kg Acceleration (a) = 1.5 m/s2 Required: The force of tension on the…

Q: What is the mass of a car that attains a velocity of 10.0 m/s in 8.0 seconds if it started from…

A: Mass is the quantity of matter in a physical body. It is also a measure of the body's inertia, the…

Q: An astronaut on the Moon simultaneously drops a feather and a hammer. The fact that they land…

A: feather and hammer falls on the Moon

Q: 14. Cars that are moving along horizontal roads are going to be stopped by plowing into identical…

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Q: A rock on a string is being accelerated upward. The tension in the string:

A: Answer             D) is greater than the weight of the rock

Q: 33. A small sports car collides head-on with a massive truck. The magnitude of the greater impact…

A: here we have to apply newton third law

Q: A balloon is rising vertically at 4.0 m/s. Wind is blowing from east to west at 3.0 m/s. Find the…

A: Given , vertical velocity of balloon , vy = 4.0 m/s Wind is blowing from east to west at 3.0 m/s .…

Q: An astronaut is moving at a constant velocity through space. The astronaut throws a tool directly…

A: If u thrown an object into the space, it will continue moving in its straight path with the same…

Q: Students were tasked with dropping a 0.2 kg bag of marbles straight down into a 1.0 kg toy cart…

A: Here we will use the concept of constant acceleration.

Q: The parking brake on a car causes the rear wheel to lock up what would be likely consequences of…

A: Rotation and translation are 2 attributes associated with motion. Rotation is when body revolves…

Q: A person steps on to a scale in a stationary elevator and notes their weight. The elevator begins to…

A: A person steps on a scale in a stationary elevator. The elevator begins to accelerate downward.

Q: A bucket is being lowered by a very light rope with a constant downward velocity. The tension in the…

A:

Q: Bonita Cart hita is pulling a cart to the right. She does not realize that the cart is tied to a…

A:

Q: A skier is coming down the hill. What are the forces acting parallel to the slope of the hill

A: Let the angle made by the slope of the hill = θThe skier is moving down the hill

Q: An object is dropped from the height of 50 centimeters. Calculate the time in seconds the object…

A: Given: mass of object (m) = 200g            height above the ground (h) = 50cm = 0.5m To find: Time…

Q: A student is standing in an elevator that is accelerating downward. The force that the student…

A: While riding an elevator we have noticed that while climbing we feel ourselves heavy and while going…

Q: A student drops a pebble from the edge of a vertical cliff. The pebble hits the ground 4 s after it…

A: Given data:  Initial velocity (Vi) = 0 m/s Time (t) = 4 s Required: Height (h)

Q: football player runs without his knee and thigh pads. Discuss what will happen to him if he…

A: When any object fall on ground with some speed has some initial momentum after falling on the ground…

Q: A swim or swim stand complete that's in the swimming pool it takes 15 seconds to complete the swim…

A: Given data The time taken by the swimmer to complete one lap is t = 15 s. The length of the pool is…

Q: A sack of rice weighing 33 kg and 5 kg are hung on opposite sides of a pulley. Determine the…

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Q: You are diving board over a swimming pool. You are throwing upward a tennis ball at a speed 3 m/s.…

A: Let height is h between board and water  Now by  V2 = U2 + 2ah  152 = 32 + 2(-9.8)h  h =…

Q: An object starts falling from rest. It travels 2.78m in 0.75 seconds. What is the final velocity of…

A:

Q: Inertia is the tendency of the body to resist motion or changes in motion. It depends on the…

A: The tendency of the body to resist motion or change in motion varies with mass.

Q: a person throws a ball vertically and catches it after 5.10 s. What is the ball’s initial velocity

A: Time of flight,  Acceleration due to gravity,    The time of flight of the ball is given by the…

Q: of conservation of momentum. The bricks on top of the carts have the same mass as the cart. The…

A:

Q: The muzzle velocity of a gun is the velocity of the bullet when it leaves the barrel.  The muzzle…

A:

Q: A ball is located on the edge of a table . The ball is pushed, horizontally, and now has an initial…

A: The ball is given a velocity in the horizontal direction. All the quantities in the downward…

Q: A boat travels a distance of 220m (E 40° N] and then rounds a buoy (turning point) and travels a…

A: Solution: first distance of 220m (E 40° N]  second a distance of 360m [N 30° W] t= 22 s

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –