A newspaper delivery boy is riding his bicycle down the street at 5.1m/s . He can...

A newspaper delivery boy is riding his bicycle down the street at 5.1m/s . He can throw a paper at a speed of 8.3m/s. What is the paper's speed relative to the ground if he throws the paper forward?

Expert Solution

Speed of the paper (in ground frame) = Speed with which he can throw + speed of the cycle

=5.1 m/s +8.3 m/s

=13.4 m/s (Ans.)

CONCEPT:

The concept is not much difficult but requires a general understanding of what is actually going on. I hope you understood that the paper's velocity will be added up with the velocity that he is already having (cycle's velocity) to get the net paper velocity in ground frame.

Still comment in case of any doubt.

genius_generous answered 2 years ago

Jack, a 10-year old boy, is riding his bicycle on the way home. Suddenly, a dog...

Jack, a 10-year old boy, is riding his bicycle on the way home. Suddenly, a dog ran in front of his path, causing him to swerve towards the canal. Jack fell through the canal and his bicycle landed on top of him. The emergency room physician took his x-ray and later on informed Jack’s parents that their son had a closed fractured on his right arm. Instructions: 1. Complete an APIE for Jack 2. Create Nursing Diagnosis for Jack 3....

Harvey is riding his bicycle, no-handed, and at a very fast speed down a park path....

Harvey is riding his bicycle, no-handed, and at a very fast speed down a park path. Trish, a jogger, accompanied by her dog, Rover on a leash is approaching Harvey from the other direction. Because he knows that he is bigger and faster on his bike, Harvey expects Trish to move out of his way. Unfortunately, Trish does not and as Harvey passes Trish, he side-swipes her knocking her to the ground and injuring her. Rover is inadvertently released when...

A boy pushes his little sister in a sled across the horizontal ground. He pushes down...

A boy pushes his little sister in a sled across the horizontal ground. He pushes down and to the right on the sled at an angle of 35 degrees from the horizontal. The mass of the sled and the sister together is 60 kg. The coefficient of static friction of the sled with the ground is 0.3 and the coefficient of kinetic friction is 0.2. a) Draw a sketch of the situation and a force diagram of the sled, labeling...

A person is riding a bicycle, and its wheels have an angular velocity of 22.0 rad/s....

A person is riding a bicycle, and its wheels have an angular velocity of 22.0 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is 12.9 revolutions. (a) How much time does it take for the bike to come to rest? (b) What is the anguar acceleration (in rad/s2) of each wheel?

Jack is riding his bicycle from home to LeConte College with a velocity given by v(t)=...

Jack is riding his bicycle from home to LeConte College with a velocity given by v(t)= -t^4 + 4-t^3 - 500t^2 +2000t in feet away from his house per minute and where t is in minutes. If it takes jack 20 minutes to get to LeConte College, find the following: a.) Estimation of S (integral) upper 20, lower 0: v(t)dt using left-hand sums with n=2 subdivisions. Why is this a bad estimate? b.)Estimation of S (integral) upper 20, lower 0,...

Bob is driving down the street. He is not very attentive and crashes into the car...

Bob is driving down the street. He is not very attentive and crashes into the car in front of him, driven by Fred, a licensed blaster. Unknown to Bob, the car has dynamite in the trunk and explodes. The Fred is killed instantly. Jane is a pedestrian on the sidewalk next to the explosion. She is struck by flying chunks of the exploding car and seriously injured. The blast is so severe, that windows shatter as far a five blocks...

Suppose that Kevin is a 10 years old boy. He is at the mall with his...

Suppose that Kevin is a 10 years old boy. He is at the mall with his mom, and she gives him some money to get food from the food court. At the food court there is a hamburger place, and an ice cream shop. In the following table, I will show you Kevin's Total Utility for each quantity of Hamburgers and ice cream. Hamburgers ($2) Ice Cream ($1) Quantity Total Utility Marginal Utility MU/P Quantity Total Utility Marginal Utility MU/P...

Alex Jr. is getting frustrated as pizza delivery boy because histips are so low. He...

Alex Jr. is getting frustrated as pizza delivery boy because his tips are so low. He does his best to get the pizza delivered in exactly 5 minutes; but it takes so long to take the order, prepare the pizza, cook the pizza, brick the pizza (for a nice gourmet crisp crust), and box the pizza that he can't get it delivered in under an hour. His boss asks Alex Jr. why it's taking him so long to get the...

A 7-year-old boy had recently started taking horseback riding lessons during his summer vacation. During a...

A 7-year-old boy had recently started taking horseback riding lessons during his summer vacation. During a particularly rainy period, he did not take lessons for 2 weeks but started taking lessons again the following month. At the end of the summer, he started developing neck stiffness, fever, and mental confusion. He was taken to a hospital where a spinal tap was done and results were negative for bacterial meningitis. (1 pt each) a. What disease is likely to have been...

Mr. H is a 30-year-old man. He was riding his bike to work and was struck...

Mr. H is a 30-year-old man. He was riding his bike to work and was struck by a vehicle traveling at 35 miles per hour. He was comatose with a GCS 7 upon arrival to the ED. What are the leading causes of traumatic brain injury in the United States? Describe important teaching points in prevention of a TBI. Traumatic brain injury can be classified into primary brain injury and secondary injury, describe the differences in the two types of injury. List common...

Question