Examples of positive,negative and zero work
give an example of the motion of a body moving with a constant speed, but with a variable velocity.draw a diagram to represent such a motion.
plz explain wat is a trapesium?explain it in simple words so that i can understand easily
Please help me out with this question as quick as possible because my exam is tomorrow.
Atrain starts at rest and accelerates uniformly at the rate of 2 m/s2 for 10s. It then maintains constant speed for 200s. The brakes are then applied and the train is uniformly retarded and comes to rest in 50s. Find: 1.The maximum velocity reached 2.the retardation in the last 50s 3. the total distance travelled 4.the average velocity of the train.
A spacecraft flying in a straight course at 75km/s fires its rocket motors for 6s. At the end of this time the speed is 120km/s in the same direction. Find: 1. the spacecraft's avg acceleration while motors were firing. 2. the distance travelled by the space craft in the first 10s after the rocket motors were started, the motors having been in action for only 6s.
Examples of positive,negative and zero work
give an example of the motion of a body moving with a constant speed, but with a variable velocity.draw a diagram to represent such a motion.
plz explain wat is a trapesium?explain it in simple words so that i can understand easily
Please help me out with this question as quick as possible because my exam is tomorrow.
Atrain starts at rest and accelerates uniformly at the rate of 2 m/s2 for 10s. It then maintains constant speed for 200s. The brakes are then applied and the train is uniformly retarded and comes to rest in 50s. Find: 1.The maximum velocity reached 2.the retardation in the last 50s 3. the total distance travelled 4.the average velocity of the train.
A spacecraft flying in a straight course at 75km/s fires its rocket motors for 6s. At the end of this time the speed is 120km/s in the same direction. Find: 1. the spacecraft's avg acceleration while motors were firing. 2. the distance travelled by the space craft in the first 10s after the rocket motors were started, the motors having been in action for only 6s.