- A Foot Ball Is Kicked From Ground Level It Goes Off The Ground With A Velocity 10 I 15 J M S How Far Away Will The 1 (63.68 KiB) Viewed 49 times
- A Foot Ball Is Kicked From Ground Level It Goes Off The Ground With A Velocity 10 I 15 J M S How Far Away Will The 2 (83.16 KiB) Viewed 49 times
- A Foot Ball Is Kicked From Ground Level It Goes Off The Ground With A Velocity 10 I 15 J M S How Far Away Will The 3 (85.47 KiB) Viewed 49 times
- A Foot Ball Is Kicked From Ground Level It Goes Off The Ground With A Velocity 10 I 15 J M S How Far Away Will The 4 (59.95 KiB) Viewed 49 times
A foot-ball is kicked from ground level. It goes off the ground with a velocity = 10 i + 15 j m/s. How far away will the ball hit the ground? O 30.6 m 150 m O 15.3 m O 61.2 m
A car of mass 900 kg is moving with a constant speed of 30.0 m/s around a circular track of radius 250 m in the counter- clockwise direction. What is the centripetal force on the car when the car is at the point 'A'? (The point "a" makes an angle of 150° with the positive x-axis, and 30° clockwise from the negative X-axis, as shown in the figure). A 30° O-2.81 + 1.62 jkN 2.81 i 1.62 j kN 2.81 i+ 1.62 j kn -2.81 i 1.62 jkN 3.12 i + 1.80j Kn -3.12 i- 1.80 j kN 3.12 i- 1.80j kN O 3.12 i-1.80j kN X
In order to study the effects of automobile collisions, a car of mass 1200 kg moving at 30 m/s hits a very strong and rigid wall. After the crash, the car is seen to bounce backwards at 5 m/s. The time during which it is in contact with the wall is 0.16 s. Calculate the magnitude of the average force acting on the car from the wall during this collision? 6.72 KN O 225 kN 187 kN O 262 KN
In each cycle, a heat engine absorbs 3.50 kJ from a hot reservoir at 300 °C and expels 2.40 kJ to a cold reservoir at 30°C. What is the engine's Carnot Cycle efficiency? O 72.0% O 43.6% 90 % O 31.4%