A ball is rolling from A to D on a flat and smooth surface. Its speed is 2 cm/s. On reaching B, it was pushed continuously up to C. On reaching D from C, its speed had become 4cm/s`. It took 2 seconds for it to go from B to C. What is the acceleration of the ball as it goes from B to C ?

Let A = {x,y,z} and B = {a,b,c,d} . Which one of the following is not a relation from A to B

If the distance s travelled by a particle in time t is s=a sin t +b cos 2t , then the acceleration at t=0 is: a) a b) -a c) 4a d) -4b

A body of mass 0.2 kg performs linear S.H.M. It experiences a restoring force of 0.2 N when its displacement from the mean position is 4 cm . Determine acceleration of the body when its displacement from the mean position is 1 cm.

A metro train runs from station A to B C. It takes 4 minutes in travelling from Station A to Station B. The train halts at station B for 20 s. Then it starts from station B and reaches Station C in next 3 minutes. At the start, the train accelerates for 10 s to reach the constant speed of 72 km//hr . The train moving at the constant speed is brought to rest in 10 sec. At next station. (i) Plot the velocity- time graph for the train travelling from the station A to B to C. (ii) Calculate the distance between the stations A, B and C.

A ball falls of a table and reaches the ground in 10 s. Assuming g=10m//s^(2) , calculate its speed on reaching the ground and the height of the table.

A ball falls off a table and reaches the ground in 1 s. Assuming g = 10 m//s^(2) , calculate its speed on reaching the ground (2 marks) and the height of the table.

If A = {a, b, c, d} and B = {1, 2, 3}, then which of the following is a relation from A to B?

Choose the correct alternative from those given below each question: What is the degree of the determinant |[a,b],[c,d]| ?