Solve this question

Solve this question 5. Complete the following table. u (rn/s) -g s) 4. Complete the sentences and explain a. The minimum distance between the start and finish points of the motipn of an object is called the of the object. b. Deceleration is acceleration c. When an object is in uniform circular motion, its changes at every point. d. During collision . remains constant. e. The working oc a rocket depends on Newton's . law of motion. Give scientific reasons. 2 t (sec) 7. Solve the following examples. a) b) c) d) An object moves 18 m in the first 3 s, 22 m in the next 3 s and 14 m in the last 3 s. What is its average speed? (Ans: 6 m/s) An object of mass 16 kg is moving with un acceleration of 3 m/s: Calculate the applied force. If the same force is applied on an object of mass 24 kg, how much will be the acceleration? (Ans: 48 N, 2 m/s2) A bullet having u muss of 10 g and moving with a speed of 1.5 mis, penetrates a thick wooden plunk of mass 90 g. The plank was initially at rest. The bullet gets embedded in the plank and both move together. Determine their velocity. (Ans: 0.15 m/s) A person swims 100 m in the first 40 s, 80 m in the next 40 s and 45 m 20 s. What is the average in the speed? (Ans: 2.25 m/s2) 6. a. When an object falls freely to the ground, its acceleration is uniform. b. Even though the magnitudes of action force and reaction force are equal and their directions are opposite, their effects do not get cancelled. c. It is easier to stop a tennis ball as compared to a cricket ball, when both are travelling with the same velocity. d. The velocity of an object at rest is considered to be uniform. Take 5 examples from your surroundings and give explanation based on Newtons laws of motion. Project: Obtain information about commonly used gadgets or devices which are based on the principles Of Newton's laws of motion.