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Padma
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Padma
Asked: November 29, 2021In: Class 9 Science

Velocity time graph for a moving object is found to be curved line, then its acceleration is:

Velocity time graph for a moving object is curved line, this means that object is moving with non-uniform accelerated motion. Therefore, body is moving with variable acceleration.

class 9 science mcq solutionsclass 9th science cbsc sample paper
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Rama Nand
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Rama Nand
Asked: November 29, 2021In: Class 9 Science

A truck moving with a speed of 54 km/h. Truck driver applied brakes suddenly and brings the truck to rest in 5 s, then the average retarding force on truck, if mass of the truck and driver is 400 kg, will be:

Given, u = 54 km/h = 54 x 5/18 m/s = 15 m/s V = 0 and t = 5 s. Retardation, a = v – u/t = 0 – 15/5 = – 3 m/s ² Avg retardation force, ...

class 9 science mcq solutionsclass 9th science cbsc sample paper
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Om Wati
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Om Wati
Asked: November 29, 2021In: Class 9 Science

Intestine absorb the digested food materials. What type of epithelial cells are responsible for that?

Columnar epithelium consists of column-like cells with their nucleus towards the base. They line the stomach, small intestine, and colon, forming a mucous membrane. Their main functions are absorption (eg, stomach, intestine) and secretion (eg, mucosa by goblet cells). Stratified ...

class 9 science mcq solutionsclass 9th science cbsc sample paper
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Ram sager
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Ram sager
Asked: November 29, 2021In: Class 9 Science

A Train starting from rest attains a velocity of 90 km/h in 2 min, then the distance travelled by the train for attaining this velocity is:

Class IX Science MCQ Extra Questions Answers Class 9th Science Session 2021-22 Class 9 Science Terminal Exams MCQ Solutions 9th Science Terminal Exam Based MCQ Extra Questions

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Ram sager
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Ram sager
Asked: November 29, 2021In: Class 9 Science

A car retards uniformly at the rate of 5 m/s² and stops in 10 s. The initial velocity of car is:

Class 9th Science Session 2021-22 Class 9 Science Terminal Exams MCQ Solutions Class IX Science MCQ Extra Questions Answers 9th Science Terminal Exam Based MCQ Extra Questions

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