If a car changes speed from 20 m/s to 22 m/s in 10 seconds, its average acceleration is 20 m/s2 2 m/s2 0.2 m/s2 22 m/s2 21 m/s2 Which of the following is considered to be an "accelerator" in an automobile? * All of them. gas pedal

=Q\\ 1 \ A Car is moving at a speed of (30 m15). If a driver presses the brake, the moves with an acceleration of (6 m/s2). 1-Calculate the Car's speed after (25). 2- The time it takes for the car to stop. 3- The displacement of the Car.

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B2

Only question 1 please

デジタル形式で段階的に解決 ありがとう!! SOLVE STEP BY STEP IN DIGITAL FORMAT A force of 300 N acts on an 85 kg block so that it moves a distance of 23 ft on an inclined plane to a height of 9 ft. a) Find the friction force. Force 9ft

is the universal constant for the Newton's universal law of gravitation. O a. 6.67x10-12 N.m²/(kg²) O b. 6.67x10-14 N.m²/(kg²) O c. 6.67x10-13 N.m²/(kg²) O d. 6.67x10-|" N.m²/(kg²)

Q3 Car B is entering to the main highway at a curved road of p= 100 m with a speed of 15 m/s while decreasing its speed at 2 m/s². Meanwhile, lorry C is traveling along the straight road with a speed of 30 m/s while decelarating at 3 m/s² as shown in Figure Q3. (a) Calculate the velocity of car B relative to the lorry C, VBC. (b) (c) Calculate the acceleration of car B relative to the lorry C, Asc Calculate the direction angle of the velocity and acceleration, 0, 0, bet

The wind velocity on the upstream side of a wind turbine is 4 m/s. If the turbine extracts 26% of the available kinetic energy, what is the wind velocity on the downstream side of the turbine in m/s? Please include one decimal place in your answer.

c) A box from rest is pulled with a force of 25 N as shown in Figure 4(b). If the angle between CLO 1 the force and displacement is 30°, calculate the work done and the velocity of the box when it C3 moves 15m from the initial state. Given mass of the box is 2kg. [10 marks] Sebuah kotak dari keadaan ditarik dengan daya 25N seperti yang ditunjukkan dalam Rajah 4(b). Sekiranya sudut antara daya dan sesaran adalan 30°, kirakan kerja yang telah dilakukan dan halaju kotak berkenaan setelah ia bergerak sejauh 15m daripada kedudukan asal. Diberi jisim kotak tersebut adalah 2kg. [10 markah] SULIT |SULIT DJJ30093: ENGINEERING MECHANICS / POLISAS 30 Figure 4(b) Rajah 4(b)