Watch the above video and answer the following questions.
1. Anand leaves his house at 8....
Watch the above video and answer the following questions.
1. Anand leaves his house at 8.30 am for his school. The school is 2km away and classes start at 9 am. If he walks at a speed of 2 km/hr for the first kilometre , at what speed should he walks the second kilometre to reach just in time?.
2. A train starting from a railway station and moving with uniform acceleration attains a speed of 40 km/hr in 10 minutes . Find its acceleration.
3. A scooter travelling at 10 m/s speeds up to 20 m/s in 4s . Find the acceleration of the scooter.
4. An object dropped from a cliff falls with a constant acceleration of 10 m/s2 . Find it's speed after 5s seconds it was dropped.
5. A driver of a car A travelling at 52 km/hr applies the brake and the car stops in 5 s . A driver of car B going at 3 km/hr applies brake and the car stops in 10 s. calculate the acceleration of car A and car B . Also find which car has more acceleration than other.
Answers: 1
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The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus
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Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?
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