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- From a velocity of 65 kph, a train decelerates at a rate of 3 m/min2 along a straight path. How far in meters will it travel after 14 mins? 14873.158 m 18753.148 m 15873.148 m O 17843.158 mTwo planes leave Manila for a southern city, a distance of 900 km. Plane A travels at a ground speed of 90 kph faster than the plane B. Plane A arrives in their destination 2 hours and 15 minutes ahead of Plane B. What is the ground speed of plane A? A. 205 kph B. 315 kph C. 240 kph D. 287 kphPROBLEM SOLVING A student accidentally dropped her pen from the fourth floor of the school building which is 14 m from the ground. How fast is it moving when it hits the ground? Equation? A. vf2=vi2+2gyvf2=vi2+2gyB. vf=vi2+2gyvf=vi2+2gyC. vf2=vi2−2gyvf2=vi2−2gyD. vf2=√vi2+2gyvf2=vi2+2gy Select from the letters above. Type only the letter.
- The position of a particle is given by the equation s(t)=10t^2−20/3 t^3−5/4 t^4+t^5 where t is measured in seconds and s in meters. a. Find v(t). b. Find a(t). c. When is the particle at rest? d. When is the particle moving forward? e. When is the particle moving backward? f. Draw a diagram to represent the motion of the particle. g. Find the total distance traveled by the particle during the first four seconds. You must show ALL of your work in order to receive full credit. please do not reject my question I need helpThe velocity-time graph that describes the velocity of an object with time is given as in the figure below. if the values of a= 98.5, b=124.6 and c=57, Find the displacement made by the object in the first hour. v(km/h) b. a t(h) 0.5 1.0 1.5 2.0 Select one: A. 118.1 OB. 175.1 OC 398.4 OD. 139.6 OE 142.7 choiceheight h Time Time Mean time t t1 (s) t2 (s?) h/t? (m/s2) g (m/s?) (cm) t2 (s) (s) 20 0.2020 0.2024 0.2022 0.04088 4.8923 9.7846 30 0.2470 0.2476 0.2473 0.06115 4.9059 9.8118 40 0.2850 0.2858 0.2854 0.0814 4.9140 9.828 50 0.3193 0.3183 0.3188 0.1016 4.9212 9.8424 60 0.3506 0.3502 0.3504 0.12278 4.8867 9.7734 a) The average value 'g' from the above table is m/s? b) If the exact value of 'g' at that place is 9.825 m/s2, i) the absolute uncertainty in the value of 'g' is m/s2 ii) the percentage uncertainty in the value of 'g' is
- You are driving at 48 km/h and see the red light 0.32 km ahead. You slam on the brakes and able to stop right at the light. Ignoring response time, what is the acceleration of the car? Taking forward direction positive. O-0.28 m/s² O 0.36 m/s² O 0.28 m/s² O-0.36 m/s² O-1.0 m/s²You are walking to your physics class at speed 1.0m/s with respect to the ground. Your friend leaves 2.0 min after you and is walking at speed 1.3m/s in the same direction. How fast is she walking with respect to you? How far does your friend travel before she catches up with you? Indicate the uncertainty in your answers. Describe any assumptions that you made.The motion of a particle moving in space from t=0 to t=4 seconds is defined by the following velocities: Vx=2t2, Vy=4-t2, Vz=8t. What is the total distance traveled by the particle after 4 seconds in meters? answer: 81 meters Explain every process.
