Question

1. On his return erage speed of these turns around n point A to ve un What do you understand by the term acceleration? When is acceleration (1) positive, (u) negative? State the unit of acceleration in SI system. 5. Give an example of an accelerated body, moving with a uniform speed. Does the seconds hand of a watch represent uniform motion or accelerated motion (IT SHORT ANSWER TYPE QUESTIONS - I Define the terms: (1) speed, and (ii) velocity. State two differences between speed and velocity. [MBOSE 2015) Name a physical quantity which corresponds to : rate of change of displacement (b) rate of change of velocity. Give an example of a body moving with a uniform speed and uniform acceleration. Justify you answer. (IV) SHORT ANSWER TYPE QUESTIONS - II 1. By giving one example each, define : (a) uniform velocity, (b) variable velocity and (c) avera velocity 2. A motorcyclist drives from A to B with a uniform speed of 30 kmh- and returns back with a sp of 20 kmh-!. Find its average speed. 3. A body starts from rest and moves along the x-axis with constant acceleration 5 ms 2 for 8 sec If it then continues with constant velocity, what distance will the body cover in 12 seconds it started from the rest? jour [24 km e of [3 (V) LONG ANSWER TYPE QUESTIONS -2, Establish the formulae v = u + at and s = ut + = atº, where symbols have usual meaning at 2. (a) Define the following: (i) Uniform acceleration (ii) Variable acceleration, (b) Establish the formula, v2 - 42 = 2as, where symbols have usual meanings.​

Answer 1

Answer:

are are nhi ho payega

Solly

Answer 2

Answer:

Photosynthesis is the process in which green plants use sunlight to make their own food. Photosynthesis requires sunlight, chlorophyll, water, and carbon dioxide gas as raw materials. Chlorophyll is a substance in all green plants, especially in the leaves.