ACTIVITY 4 REFERENCE: https://drive.google.com/drive/folders/1s1cnwMyu8gH1ey4QLALnS0QpjiHSaX33

INSTRUCTION: ANSWER THE FOLLOWING BELOW:

NOTE: THE REFERENCE OF THE ANSWER HERE IS IN THE LINK.

B. Projectiles Launched at an Angle 1. Access the Physics Classroom Projectile Motion Simulator through the website: https://phet.colorado.edu/sims/html/projectile-motion/latest/projectile-m otion en html 2. Open the VECTOR section of the simulation. Set the angle of launch to 80 degrees with respect to the horizontal. Set the initial velocity to 18 m/'s. Remove air resistance, select components (instead of total), then check the velocity and acceleration vectors components. You may set the simulation to slow motion. 4. At what point in the projectile's trajectory is the velocity entirely horizontal (i.e. the vertical velocity is zero)? If necessary, slow down the simulation 5. Set the launch speed to 15 m's and the launch height to 0. Fill out the table below to investigate the effect of launch angle on horizontal displacement. Drag the icon to where the projectile hit the ground to see the horizontal displacement or range. Launch angle Horizontal (degrees) displacement (m) 25 30 35 40 45 50 35 60 65 70 75 80 6. What do you observe about the pattern of the values of horizontal displacement with respect to the angle of launch?Questions and Calculations: Part 1: 1. As you increase the applied force, what happens to the time it takes for the box's velocity to reach 5 m/s? Is this change linear or not? Why do you think so? 2. By how much factor does the acceleration of the 50 kg mass increase if you increase the applied force from 10 N to 50 N? What does this tell you about the relationship between acceleration and force? 3. What happens to the box when you remove the applied force acting on it? Why? 4, Graph the acceleration us applied force for all $ trials Calculate the slope of your graph. What do you think this slope represents? 5. If you reduce the applied force on an object by 1/4, what do you think will happen to the acceleration of that object