- 17 An Electric Car Starts From Rest And Accelerates Due To Its Engine S Constant Power Output After 5 0 Seconds The Ca 1 (114.76 KiB) Viewed 27 times
17-(C)
18-(A)
plz could i see working out for both questions
17. An electric car starts from rest and accelerates due to its engine's constant power output. After 5.0 seconds the car has a speed of 10 m/s. After 10 seconds what is the car's speed (in m/s)? (A) 0.0 (B) 10 (C) 14 (D) 20 (E) 40 18. A wheel starts spinning at time t = 0 and its angular position as a function of time is given by 0 (t) = b √t where b = 1.0 x 10¹ s¹/2. What is the wheel's angular speed at t = 5.0 s (in rad s¯¹)? (A) 7.0 (B) 23 (C) 70 (D) 1.6 x 10² (E) 2.3 × 10²