1- A particle is thrown at an angle of 30. with a velocity of 36 kmph Calculate its (1) time of flight. (2) horizontal range -> 2- The range of a projectile is equal to 3 times the maximum heigh attained. Find the angle of projection.

The design of the ski slope is as shown in Figure 4.Skier glides at the start speed of 17m/s. Answer each of the following questions.1) Find the time (s) after the skier starts the descent and lands.2) Find the distance d(m).3)As soon as the skier lands, calculate the size (m/s) of the speed along the slope.4) When landing, calculate the speed of the skier and the angle of the slope.

Q4. The image below shows the motion trajectory of a ball. If the motion takes place in 8 seconds, determine the average velocity of the ball. Please pay attention: the number may change since it is randomized. Your answer must include 2 places after the decimal point, and proper Sl unit. Note, the image shows the positive direction of position, and negative sign must be included if the average velocity is against the positive direction. -5 -4 -3 -2 -1 0 1 2 3 4 Your Answer: Answer units 10 5 s (m)

7. A ball attached to a string of length 0.25 meters is whirled around in a circular path. It experiences a centripetal acceleration of 40 m/s². a. What is the tangential velocity of the ball? b. How long does the ball take to make one complete revolution?