CHOOSE THE CORRECT ANSWER SUIT FOR THE GIVEN QUESTION

1. An airplane requires 205 and 400m of runway to become airborne, starting from rest. Its speed when it leaves the ground is... A. 20 m/5 B. 32 m/s C. 40 m/5 D. 80 m/5 2. A car has an initial speed of 50 ft/s and an acceleration of 4 ft/s^2. In the first 10s after the acceleration begins, the car travels... A. 200 ft B. 500 ft C. 700 ft D. 900 ft 3. On a distance time graph, a horizontal straight line corresponds to motion at... A. zero speed B. constant speed C. Increasing speed D. decreasing speed 4. On distance-time graph, a straight line sloping upward to the right corresponds to motion at A. zero speed B. constant speed C. increasing speed D. decreasing speed 5. What is the power of a 50 kg bicyclist that can climb a hill 20 m high in 100 sec? A. 98 watts B. 100 watts C. 1 x 1045 watts D. 9.8 x 1045 watts6. A sedentary person requires about 6000 million joules of energy per day. This rate of energy consumption is equivalent to about 70 W 250 W 335 W 600 W 7. The car of a roller coaster starts from rest at a height of 10 m above the ground. If there is no friction, the car's speed at the ground will be A. 4.47 m/s B. 7 m/S C. 9.9 m/s D. 14 m/s 8. In which of the following cases is energy better conserved during transformation? A. A car rolling down a steep uneven hill B. A basketball bouncing up and down along the court C. A batted baseball flying in the field D. A pendulum bob swinging in a Grand Father's clock 9. Car A has a mass of 1000 kg and a speed of 60 kph while car B has a mass of 2000 kg and speed of 30 kph. The kinetic energy of car A is A. half that of car B B. equal to that of B C. twice that of B D. 4 times that of car B 10. A 1000 kg car whose speed is 80 kph has a kinetic energy of A. 2.52 x 10^4 ) B. 2.47 x 10^5 ] C. 2.42 x 10^6 ] D. 3.2 x 10 6 J