A rocket with a lift–off mass 3.5 × 104 kg is blasted upwards with an initial acceleration of 10 m/s2. Then the initial thrust of the blast is
1.75 × 105 N
3.5 × 105 N
7.0 × 105 N
14.0 × 105 N
Next Question
The upper half of an inclined plane of inclination θ is perfectly smooth while lower half is rough. A block starting from rest at the top of the plane will again come to rest at the bottom, if the coefficient of friction between the block and lower half of the plane is given by