1) State four uses of hydraulic press.
2) A mass of 5 kg is acted upon by a force of one newton. Starting from rest, how much is
distance covered by the mass in 20 s?
3)The blades of ceiling fan continue to rotate even when the current is switched off. Why?
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sory l don't know
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Answer:
1.Hydraulic presses are commonly used for forging, clinching, moulding, blanking, punching, deep drawing, and metal forming operations. The hydraulic press is advantageous in manufacturing, it gives the ability to create more intricate shapes and can be economical with materials.
2.Distance is 20 m.
3.The blades of an electric fan continue to rotate for some time because of inertia of motion. The blades of the fan were in motion. Hence, they will take time to come to rest after being switched off. ... But the dust particles continue to be at rest due to inertia and get detached from the carpet.
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