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1. My friend ask help from me to pull on a heavy box, but he pulls twice as hard as me. He is pulling with a direction of 65.0° North of West, and the resultant of both our pulls is 460.0 N due North. Use vector components and triangle method to find the magnitude of each of our pulls and the direction of the smaller pull. 2. A kalesa and a bicycle start with zero initial velocity at the same instant, with the kalesa initially at some distance behind the bicycle. The kalesa has a 2.1 m/s^2 constant acceleration and 3.4 m/s^2 acceleration for bicycle. The kalesa overtakes the bicycle after the bicycle has moved 40.0 m. (a) How long does it take the kalesa to overtake the bicycle? (b) What was the distance of the kalesa behind the bicycle initially? (c) What is the speed of each when they are side by side? 3. A 15-kg rock is dropped from rest on the earth and reaches the ground in 1.75 s. When it is dropped from the same height on Saturn's satellite Enceladus, it reaches the ground in 18.6 s. What is the acceleration due to gravity on Enceladus? 4. There are two frogs named Eroggy and Jumpy. They jumped from the top of a vertical cliff. Eroggy just drops and reaches the ground in 3.50 s, while Jumpy jumps horizontally ((bida bida siya, char! Hahal) with an initial speed 95 cm/s. a. How far from the base of the cliff will Jumpy hit the ground? b. How high is the vertical cliff? c. If Jumpy jumps with an angle of 30 degrees with respect to the horizontal, what should be its initial velocity for it to land on the same spot as he did when he jumped horizontally?

1. My friend ask help from me to pull on a heavy box, but he pulls twice as hard as me. He is pulling with a direction of 65.0° North of West, and the resultant of both our pulls is 460.0 N due North. Use vector components and triangle method to find the magnitude of each of our pulls and the direction of the smaller pull. 2. A kalesa and a bicycle start with zero initial velocity at the same instant, with the kalesa initially at some distance behind the bicycle. The kalesa has a 2.1 m/s^2 constant acceleration and 3.4 m/s^2 acceleration for bicycle. The kalesa overtakes the bicycle after the bicycle has moved 40.0 m. (a) How long does it take the kalesa to overtake the bicycle? (b) What was the distance of the kalesa behind the bicycle initially? (c) What is the speed of each when they are side by side? 3. A 15-kg rock is dropped from rest on the earth and reaches the ground in 1.75 s. When it is dropped from the same height on Saturn's satellite Enceladus, it reaches the ground in 18.6 s. What is the acceleration due to gravity on Enceladus? 4. There are two frogs named Eroggy and Jumpy. They jumped from the top of a vertical cliff. Eroggy just drops and reaches the ground in 3.50 s, while Jumpy jumps horizontally ((bida bida siya, char! Hahal) with an initial speed 95 cm/s. a. How far from the base of the cliff will Jumpy hit the ground? b. How high is the vertical cliff? c. If Jumpy jumps with an angle of 30 degrees with respect to the horizontal, what should be its initial velocity for it to land on the same spot as he did when he jumped horizontally?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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1. My friend ask help from me to pull on a heavy box, but he pulls twice as hard as me. He is pulling with a direction of 65.0° North of West, and the resultant of both our pulls is 460.0 N due North. Use vector components and triangle method to find the magnitude of each of our pulls and the direction of the smaller pull. 2. A kalesa and a bicycle start with zero initial velocity at the same instant, with the kalesa initially at some distance behind the bicycle. The kalesa has a 2.1 m/s^2 constant acceleration and 3.4 m/s^2 acceleration for bicycle. The kalesa overtakes the bicycle after the bicycle has moved 40.0 m. (a) How long does it take the kalesa to overtake the bicycle? (b) What was the distance of the kalesa behind the bicycle initially? (c) What is the speed of each when they are side by side? 3. A 15-kg rock is dropped from rest on the earth and reaches the ground in 1.75 s. When it is dropped from the same height on Saturn's satellite Enceladus, it reaches the ground in 18.6 s. What is the acceleration due to gravity on Enceladus? 4. There are two frogs named Eroggy and Jumpy. They jumped from the top of a vertical cliff. Eroggy just drops and reaches the ground in 3.50 s, while Jumpy jumps horizontally ((bida bida siya, char! Hahal) with an initial speed 95 cm/s. a. How far from the base of the cliff will Jumpy hit the ground? b. How high is the vertical cliff? c. If Jumpy jumps with an angle of 30 degrees with respect to the horizontal, what should be its initial velocity for it to land on the same spot as he did when he jumped horizontally?
Transcribed Image Text:1. My friend ask help from me to pull on a heavy box, but he pulls twice as hard as me. He is pulling with a direction of 65.0° North of West, and the resultant of both our pulls is 460.0 N due North. Use vector components and triangle method to find the magnitude of each of our pulls and the direction of the smaller pull. 2. A kalesa and a bicycle start with zero initial velocity at the same instant, with the kalesa initially at some distance behind the bicycle. The kalesa has a 2.1 m/s^2 constant acceleration and 3.4 m/s^2 acceleration for bicycle. The kalesa overtakes the bicycle after the bicycle has moved 40.0 m. (a) How long does it take the kalesa to overtake the bicycle? (b) What was the distance of the kalesa behind the bicycle initially? (c) What is the speed of each when they are side by side? 3. A 15-kg rock is dropped from rest on the earth and reaches the ground in 1.75 s. When it is dropped from the same height on Saturn's satellite Enceladus, it reaches the ground in 18.6 s. What is the acceleration due to gravity on Enceladus? 4. There are two frogs named Eroggy and Jumpy. They jumped from the top of a vertical cliff. Eroggy just drops and reaches the ground in 3.50 s, while Jumpy jumps horizontally ((bida bida siya, char! Hahal) with an initial speed 95 cm/s. a. How far from the base of the cliff will Jumpy hit the ground? b. How high is the vertical cliff? c. If Jumpy jumps with an angle of 30 degrees with respect to the horizontal, what should be its initial velocity for it to land on the same spot as he did when he jumped horizontally?
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